diff --git a/_batch_i18n.py b/_batch_i18n.py
new file mode 100644
index 0000000..a123258
--- /dev/null
+++ b/_batch_i18n.py
@@ -0,0 +1,190 @@
+"""Batch i18n: replace all remaining French strings in JS modules with t() calls."""
+import re, json
+
+BASE = "frontend"
+
+# ── Load locale to build reverse map ──
+with open(f"{BASE}/locales/fr.json", encoding="utf-8") as f:
+    fr = json.load(f)
+text_to_key = {}
+for k, v in fr.items():
+    if k.startswith("_"): continue
+    if v not in text_to_key or len(k) < len(text_to_key[v]):
+        text_to_key[v] = k
+
+# ── Helper: quote for replacement ──
+def esc(s):
+    return s.replace('\\', '\\\\').replace('"', '\\"')
+
+# ── Replacements: (file, old_pattern, new_pattern) ──
+# Each old_pattern must be UNIQUE in the file
+replacements = []
+
+# === ui.js ===
+f = f"{BASE}/js/ui.js"
+
+# Delete dir modal template  
+r = replacements  # shorthand
+
+# Delete dir action
+r.append((f,
+    "confirmBtn.disabled = true;\n      confirmBtn.textContent = 'Suppression...';\n      \n      try {\n        const result = await api(`/api/directory",
+    "confirmBtn.disabled = true;\n      confirmBtn.textContent = t('modal.creating');\n      \n      try {\n        const result = await api(`/api/directory"))
+
+r.append((f,
+    "showToast(`Dossier supprimé (${result.deleted_count} fichiers)`, 'success');",
+    "showToast(t('toast.dir_deleted', {count: result.deleted_count}), 'success');"))
+
+r.append((f,
+    "showToast(err.message || 'Erreur lors de la suppression', 'error');\n        confirmBtn.disabled = false;\n        confirmBtn.textContent = 'Supprimer définitivement';",
+    "showToast(err.message || t('toast.delete_error'), 'error');\n        confirmBtn.disabled = false;\n        confirmBtn.textContent = t('modal.delete_permanently');"))
+
+# Rename toasts
+r.append((f,
+    "showToast(type === 'directory' ? 'Dossier renommé' : 'Fichier renommé', 'success');",
+    "showToast(type === 'directory' ? t('toast.dir_renamed') : t('toast.file_renamed'), 'success');"))
+
+r.append((f,
+    "showToast(err.message || 'Erreur lors du renommage', 'error');",
+    "showToast(err.message || t('toast.rename_error'), 'error');"))
+
+# Copy path toast
+r.append((f,
+    "showToast(`Chemin copié : ${path}`, 'success');",
+    "showToast(t('toast.path_copied', {path: path}), 'success');"))
+
+r.append((f,
+    "showToast('Erreur lors de la copie', 'error');",
+    "showToast(t('toast.copy_error'), 'error');"))
+
+# Bookmark toast
+r.append((f,
+    'showToast(data.bookmarked ? "Ajouté aux bookmarks" : "Retiré des bookmarks", "success");',
+    'showToast(data.bookmarked ? t("toast.bookmark_added") : t("toast.bookmark_removed"), "success");'))
+
+# Dir saved search toast
+r.append((f,
+    'showToast("Repertoire sauvegarde dans les recherches", "success");',
+    'showToast(t("toast.dir_saved_search"), "success");'))
+
+# Viewer error toast
+r.append((f,
+    'showToast("Erreur lors du chargement du viewer: " + err.message, "error");',
+    'showToast(t("toast.viewer_error") + ": " + err.message, "error");'))
+
+
+# === palette.js ===
+f = f"{BASE}/js/palette.js"
+pal = text_to_key
+
+# Confirm dialogs  
+r.append((f,
+    'confirm(`Supprimer le fichier \\"${path}\\" ?`)',
+    'confirm(t("confirm.delete_file_named", {path: path}))'))
+
+r.append((f,
+    'confirm(`Supprimer \\"${path}\\" et TOUT son contenu ?`)',
+    'confirm(t("confirm.delete_dir_named", {path: path}))'))
+
+# Show toasts
+r.append((f,
+    "showToast('Erreur de création','error')",
+    "showToast(t('toast.create_error'),'error')"))
+
+r.append((f,
+    "showToast('Erreur','error')",
+    "showToast(t('common.error'),'error')"))
+
+# === config.js ===
+f = f"{BASE}/js/config.js"
+
+# About sections
+r.append((f,
+    'title: "Application",',
+    'title: t("about.section_app"),'))
+r.append((f,
+    'title: "Environnement",',
+    'title: t("about.section_env"),'))
+r.append((f,
+    'title: "Composants",',
+    'title: t("about.section_components"),'))
+
+# About rows - these are data, not labels per se, but let's translate the labels
+for old_label, key in [
+    ('"Nom"', "about.name"), ('"Version"', "about.version"),
+    ('"Version API"', "about.api_version"), ('"Statut"', "about.status"),
+    ('"Vaults configurés"', "about.vaults_configured"),
+    ('"Fichiers indexés"', "about.files_indexed"),
+    ('"Navigateur"', "about.browser"), ('"Plateforme"', "about.platform"),
+    ('"Langue"', "about.language"), ('"Backend"', "about.backend"),
+    ('"Rendu Markdown"', "about.markdown_renderer"),
+    ('"Surveillance fichiers"', "about.file_watcher"),
+    ('"Frontend"', "about.frontend"), ('"Icônes"', "about.icons"),
+    ('"Coloration syntaxe"', "about.syntax_highlight"),
+    ('"Éditeur"', "about.editor"),
+]:
+    r.append((f, f'[{old_label},', f'[t("{key}"),'))
+
+# Admin-only / no webhooks
+r.append((f,
+    "list.innerHTML = '<div class=\"config-description\">Admin uniquement</div>';",
+    "list.innerHTML = '<div class=\"config-description\">' + t('common.loading') + '</div>';"))
+r.append((f,
+    "list.innerHTML = '<div class=\"config-description\">Aucun webhook configuré.</div>';",
+    "list.innerHTML = '<div class=\"config-description\">' + t('common.none') + '</div>';"))
+
+# === auth.js ===
+f = f"{BASE}/js/auth.js"
+r.append((f,
+    'Administration — Utilisateurs',
+    "' + t('admin.title') + '"))
+r.append((f,
+    '+ Nouvel utilisateur',
+    "' + t('admin.new_user') + '"))
+r.append((f,
+    "title=\"Fermer\"",
+    "title=\"' + t('common.close') + '\""))
+
+# === viewer.js ===
+f = f"{BASE}/js/viewer.js"
+r.append((f,
+    "titleInp.placeholder = 'Titre...'",
+    "titleInp.placeholder = t('forge.title_placeholder')"))
+r.append((f,
+    "title: \"Ouvrir dans une nouvelle fenetre\"",
+    "title: t('forge.popout')"))
+r.append((f,
+    'document.createTextNode("pop-out")',
+    'document.createTextNode(t("forge.popout_label"))'))
+
+# === dashboard.js ===
+f = f"{BASE}/js/dashboard.js"
+r.append((f,
+    '"Copier"',
+    't("dashboard.copy_btn")'))
+r.append((f,
+    '"Ouvrir"',
+    't("dashboard.open_btn")'))
+
+# === search.js ===
+f = f"{BASE}/js/search.js"
+r.append((f,
+    "summaryText.textContent = `${data.total} résultat(s)",
+    "summaryText.textContent = t('search.results_count', {count: data.total})"))
+
+# ── Apply all replacements ──
+for filepath, old, new in replacements:
+    with open(filepath, "r", encoding="utf-8") as fh:
+        content = fh.read()
+    count = content.count(old)
+    if count == 0:
+        print(f"SKIP {filepath}: pattern not found: {old[:60]}...")
+        continue
+    if count > 1:
+        print(f"WARN {filepath}: {count} matches for: {old[:60]}...")
+    content = content.replace(old, new)
+    with open(filepath, "w", encoding="utf-8") as fh:
+        fh.write(content)
+    print(f"OK   {filepath}: {count} replacement(s)")
+
+print(f"\nTotal replacements applied: {len(replacements)}")
diff --git a/_i18n_final.py b/_i18n_final.py
new file mode 100644
index 0000000..23ad980
--- /dev/null
+++ b/_i18n_final.py
@@ -0,0 +1,202 @@
+"""One-pass i18n: replace all French strings in all JS modules."""
+import re
+
+BASE = "frontend/js"
+
+# All replacements as (file, find_unique_snippet, replacement)
+# Each 'find' must be UNIQUE in the file
+R = []
+
+# ═══════ ui.js ═══════
+F = f"{BASE}/ui.js"
+
+# Create file modal template
+R.append((F,
+    '<h3 class="obsigate-modal-title">Créer un fichier</h3>',
+    '<h3 class="obsigate-modal-title">${t(\'modal.create_file\')}</h3>'))
+R.append((F,
+    '<label class="modal-label">Nom du fichier</label>',
+    '<label class="modal-label">${t(\'modal.file_name\')}</label>'))
+R.append((F,
+    '<div class="modal-hint">Dans: ${parentPath',
+    '<div class="modal-hint">${t(\'modal.in_folder\', {path: parentPath'))
+R.append((F,
+    '<label class="modal-label">Type de fichier</label>',
+    '<label class="modal-label">${t(\'modal.file_type\')}</label>'))
+R.append((F,
+    '<button class="modal-btn" id="file-cancel-btn">Annuler</button>',
+    '<button class="modal-btn" id="file-cancel-btn">${t(\'common.cancel\')}</button>'))
+R.append((F,
+    '<button class="modal-btn primary" id="file-create-btn">Créer</button>',
+    '<button class="modal-btn primary" id="file-create-btn">${t(\'modal.create_btn\')}</button>'))
+
+# Create file action (toasts, textContent)
+R.append((F,
+    "createBtn.textContent = 'Création...';\n      \n      try {\n        await api(`/api/file",
+    "createBtn.textContent = t('modal.creating');\n      \n      try {\n        await api(`/api/file"))
+R.append((F,
+    'showToast(`Fichier "${name}" créé`, \'success\');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();\n        openFile(vault, path);',
+    'showToast(t(\'toast.file_created\', {name: name}), \'success\');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();\n        openFile(vault, path);'))
+R.append((F,
+    "showToast(err.message || 'Erreur lors de la création', 'error');\n        createBtn.disabled = false;\n        createBtn.textContent = 'Créer';\n      }\n    };\n    \n    createBtn.addEventListener('click', create);",
+    "showToast(err.message || t('toast.create_error'), 'error');\n        createBtn.disabled = false;\n        createBtn.textContent = t('modal.create_btn');\n      }\n    };\n    \n    createBtn.addEventListener('click', create);"))
+
+# Create dir action
+R.append((F,
+    "createBtn.textContent = 'Création...';\n      \n      try {\n        await api(`/api/directory",
+    "createBtn.textContent = t('modal.creating');\n      \n      try {\n        await api(`/api/directory"))
+R.append((F,
+    'showToast(`Dossier "${name}" créé`, \'success\');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();',
+    'showToast(t(\'toast.dir_created\', {name: name}), \'success\');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();'))
+R.append((F,
+    "showToast(err.message || 'Erreur lors de la création', 'error');\n        createBtn.disabled = false;\n        createBtn.textContent = 'Créer';\n      }\n    };\n    \n    createBtn.addEventListener('click', create);\n    cancelBtn.addEventListener('click', () => this._closeModal(overlay));\n    \n    input.addEventListener('keydown', (e) => {\n      if (e.key === 'Enter') create();\n      if (e.key === 'Escape') this._closeModal(overlay);\n    });\n  },\n\n  showCreateFileModal",
+    "showToast(err.message || t('toast.create_error'), 'error');\n        createBtn.disabled = false;\n        createBtn.textContent = t('modal.create_btn');\n      }\n    };\n    \n    createBtn.addEventListener('click', create);\n    cancelBtn.addEventListener('click', () => this._closeModal(overlay));\n    \n    input.addEventListener('keydown', (e) => {\n      if (e.key === 'Enter') create();\n      if (e.key === 'Escape') this._closeModal(overlay);\n    });\n  },\n\n  showCreateFileModal"))
+
+# Delete dir modal template
+R.append((F,
+    '<h3 class="obsigate-modal-title">Supprimer le dossier</h3>',
+    '<h3 class="obsigate-modal-title">${t(\'modal.delete_dir\')}</h3>'))
+R.append((F,
+    '<strong>Attention !</strong> Cette action est irréversible.\n            <br>Tous les fichiers et sous-dossiers seront supprimés définitivement.',
+    '<strong>${t(\'modal.delete_warning\')}</strong> ${t(\'modal.delete_irreversible\')}\n            <br>${t(\'modal.delete_dir_warning\')}'))
+R.append((F,
+    '<label class="modal-label">Dossier à supprimer:</label>',
+    '<label class="modal-label">${t(\'modal.dir_to_delete\')}</label>'))
+
+# Delete dir action
+R.append((F,
+    "confirmBtn.textContent = 'Suppression...';\n      \n      try {\n        const result = await api(`/api/directory",
+    "confirmBtn.textContent = t('modal.creating');\n      \n      try {\n        const result = await api(`/api/directory"))
+R.append((F,
+    "showToast(`Dossier supprimé (${result.deleted_count} fichiers)`, 'success');",
+    "showToast(t('toast.dir_deleted', {count: result.deleted_count}), 'success');"))
+R.append((F,
+    "showToast(err.message || 'Erreur lors de la suppression', 'error');\n        confirmBtn.disabled = false;\n        confirmBtn.textContent = 'Supprimer définitivement';\n      }\n    };\n    \n    confirmBtn.addEventListener('click', deleteDir);",
+    "showToast(err.message || t('toast.delete_error'), 'error');\n        confirmBtn.disabled = false;\n        confirmBtn.textContent = t('modal.delete_permanently');\n      }\n    };\n    \n    confirmBtn.addEventListener('click', deleteDir);"))
+
+# Delete file modal template
+R.append((F,
+    '<h3 class="obsigate-modal-title">Supprimer le fichier</h3>',
+    '<h3 class="obsigate-modal-title">${t(\'modal.delete_file\')}</h3>'))
+R.append((F,
+    '<strong>Attention !</strong> Cette action est irréversible.\n          </div>\n        </div>\n        <div class="modal-form-group">\n          <label class="modal-label">Fichier à supprimer:',
+    '<strong>${t(\'modal.delete_warning\')}</strong> ${t(\'modal.delete_irreversible\')}\n          </div>\n        </div>\n        <div class="modal-form-group">\n          <label class="modal-label">${t(\'modal.file_to_delete\')}'))
+
+# Delete file action
+R.append((F,
+    "confirmBtn.textContent = 'Suppression...';\n      \n      try {\n        await api(`/api/file/${encodeURIComponent(vault)}",
+    "confirmBtn.textContent = t('modal.creating');\n      \n      try {\n        await api(`/api/file/${encodeURIComponent(vault)}"))
+R.append((F,
+    "showToast('Fichier supprimé', 'success');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();\n        \n        if (state.currentVault === vault",
+    "showToast(t('toast.file_deleted'), 'success');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();\n        \n        if (state.currentVault === vault"))
+
+# ═══════ palette.js ═══════
+F = f"{BASE}/palette.js"
+R.append((F,
+    "confirm(`Supprimer le fichier \\\"${path}\\\" ?`)",
+    "confirm(t('confirm.delete_file_named', {path: path}))"))
+R.append((F,
+    "confirm(`Supprimer \\\"${path}\\\" et TOUT son contenu ?`)",
+    "confirm(t('confirm.delete_dir_named', {path: path}))"))
+R.append((F,
+    "showToast('Erreur de création','error')",
+    "showToast(t('toast.create_error'),'error')"))
+R.append((F,
+    "showToast('Erreur','error')",
+    "showToast(t('common.error'),'error')"))
+R.append((F,
+    "showToast('Aucun fichier ouvert','error')",
+    "showToast(t('toast.no_open_file'),'error')"))
+
+# ═══════ search.js ═══════
+F = f"{BASE}/search.js"
+R.append((F,
+    "summaryText.textContent = `${data.total} résultat(s) pour \"${freeText}\" avec filtres`;",
+    "summaryText.textContent = t('search.results_filtered', {count: data.total, query: freeText});"))
+R.append((F,
+    "summaryText.textContent = `${data.total} résultat(s) pour \"${freeText}\"`;",
+    "summaryText.textContent = t('search.results_for', {count: data.total, query: freeText});"))
+R.append((F,
+    "summaryText.textContent = `${data.total} fichier(s) avec filtres`;",
+    "summaryText.textContent = t('search.files_filtered', {count: data.total});"))
+R.append((F,
+    "summaryText.textContent = `${data.total} résultat(s)`;",
+    "summaryText.textContent = t('search.results_count', {count: data.total});"))
+R.append((F,
+    "timeBadge.textContent = `(${data.query_time_ms} ms)`;",
+    "timeBadge.textContent = t('search.query_time', {time: data.query_time_ms});"))
+
+# ═══════ config.js ═══════
+F = f"{BASE}/config.js"
+R.append((F,
+    'title: "Application",',
+    'title: t("about.section_app"),'))
+R.append((F,
+    'title: "Environnement",',
+    'title: t("about.section_env"),'))
+R.append((F,
+    'title: "Composants",',
+    'title: t("about.section_components"),'))
+for old_lbl, key in [
+    ('"Nom"', "about.name"), ('"Version"', "about.version"),
+    ('"Version API"', "about.api_version"), ('"Statut"', "about.status"),
+    ('"Vaults configurés"', "about.vaults_configured"),
+    ('"Fichiers indexés"', "about.files_indexed"),
+    ('"Navigateur"', "about.browser"), ('"Plateforme"', "about.platform"),
+    ('"Langue"', "about.language"), ('"Backend"', "about.backend"),
+    ('"Rendu Markdown"', "about.markdown_renderer"),
+    ('"Surveillance fichiers"', "about.file_watcher"),
+    ('"Frontend"', "about.frontend"), ('"Icônes"', "about.icons"),
+    ('"Coloration syntaxe"', "about.syntax_highlight"),
+    ('"Éditeur"', "about.editor"),
+]:
+    R.append((F, f'[{old_lbl},', f'[t("{key}"),'))
+
+# ═══════ auth.js ═══════
+F = f"{BASE}/auth.js"
+R.append((F,
+    "Administration — Utilisateurs",
+    "' + t('admin.title') + '"))
+R.append((F,
+    "+ Nouvel utilisateur",
+    "' + t('admin.new_user') + '"))
+
+# ═══════ viewer.js ═══════
+F = f"{BASE}/viewer.js"
+R.append((F,
+    "titleInp.placeholder = 'Titre...'",
+    "titleInp.placeholder = t('forge.title_placeholder')"))
+R.append((F,
+    'title: "Ouvrir dans une nouvelle fenetre"',
+    'title: t("forge.popout")'))
+R.append((F,
+    'document.createTextNode("pop-out")',
+    'document.createTextNode(t("forge.popout_label"))'))
+
+# ═══════ dashboard.js ═══════
+F = f"{BASE}/dashboard.js"
+R.append((F,
+    '📋 Copier',
+    "' + t('dashboard.copy_btn') + '"))
+R.append((F,
+    '📂 Ouvrir',
+    "' + t('dashboard.open_btn') + '"))
+
+# ── EXECUTE ──
+ok = 0
+skip = 0
+for filepath, find, repl in R:
+    with open(filepath, "r", encoding="utf-8") as fh:
+        content = fh.read()
+    count = content.count(find)
+    if count == 0:
+        print(f"SKIP {filepath.split('/')[-1]}: not found — {find[:50]}...")
+        skip += 1
+        continue
+    content = content.replace(find, repl)
+    with open(filepath, "w", encoding="utf-8") as fh:
+        fh.write(content)
+    ok += 1
+    print(f"OK   {filepath.split('/')[-1]}: {count}× {find[:40]}...")
+
+print(f"\nDone: {ok} applied, {skip} skipped")
diff --git a/_i18n_final2.py b/_i18n_final2.py
new file mode 100644
index 0000000..656c086
--- /dev/null
+++ b/_i18n_final2.py
@@ -0,0 +1,159 @@
+"""Robust one-pass i18n: read once, replace all, write once per file."""
+import re, collections
+
+BASE = "frontend/js"
+
+# All replacements grouped by file
+R = collections.defaultdict(list)
+
+def add(f, find, repl):
+    R[f].append((find, repl))
+
+F = f"{BASE}/ui.js"
+
+# Create file modal
+add(F, '<h3 class="obsigate-modal-title">Créer un fichier</h3>', '<h3 class="obsigate-modal-title">${t(\'modal.create_file\')}</h3>')
+add(F, '<label class="modal-label">Nom du fichier</label>', '<label class="modal-label">${t(\'modal.file_name\')}</label>')
+add(F, '<div class="modal-hint">Dans: ${parentPath', '<div class="modal-hint">${t(\'modal.in_folder\', {path: parentPath')
+add(F, '<label class="modal-label">Type de fichier</label>', '<label class="modal-label">${t(\'modal.file_type\')}</label>')
+add(F, '<button class="modal-btn" id="file-cancel-btn">Annuler</button>', '<button class="modal-btn" id="file-cancel-btn">${t(\'common.cancel\')}</button>')
+add(F, '<button class="modal-btn primary" id="file-create-btn">Créer</button>', '<button class="modal-btn primary" id="file-create-btn">${t(\'modal.create_btn\')}</button>')
+
+# Create file action (toasts, textContent)
+add(F, "createBtn.textContent = 'Création...';\n      \n      try {\n        await api(`/api/file",
+     "createBtn.textContent = t('modal.creating');\n      \n      try {\n        await api(`/api/file")
+add(F, 'showToast(`Fichier "${name}" créé`, \'success\');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();\n        openFile(vault, path);',
+     'showToast(t(\'toast.file_created\', {name: name}), \'success\');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();\n        openFile(vault, path);')
+add(F, "showToast(err.message || 'Erreur lors de la création', 'error');\n        createBtn.disabled = false;\n        createBtn.textContent = 'Créer';\n      }\n    };\n    \n    createBtn.addEventListener('click', create);",
+     "showToast(err.message || t('toast.create_error'), 'error');\n        createBtn.disabled = false;\n        createBtn.textContent = t('modal.create_btn');\n      }\n    };\n    \n    createBtn.addEventListener('click', create);")
+
+# Create dir action
+add(F, "createBtn.textContent = 'Création...';\n      \n      try {\n        await api(`/api/directory",
+     "createBtn.textContent = t('modal.creating');\n      \n      try {\n        await api(`/api/directory")
+add(F, 'showToast(`Dossier "${name}" créé`, \'success\');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();',
+     'showToast(t(\'toast.dir_created\', {name: name}), \'success\');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();')
+add(F, "showToast(err.message || 'Erreur lors de la création', 'error');\n        createBtn.disabled = false;\n        createBtn.textContent = 'Créer';\n      }\n    };\n    \n    createBtn.addEventListener('click', create);\n    cancelBtn.addEventListener('click', () => this._closeModal(overlay));\n    \n    input.addEventListener('keydown', (e) => {\n      if (e.key === 'Enter') create();\n      if (e.key === 'Escape') this._closeModal(overlay);\n    });\n  },\n\n  showCreateFileModal",
+     "showToast(err.message || t('toast.create_error'), 'error');\n        createBtn.disabled = false;\n        createBtn.textContent = t('modal.create_btn');\n      }\n    };\n    \n    createBtn.addEventListener('click', create);\n    cancelBtn.addEventListener('click', () => this._closeModal(overlay));\n    \n    input.addEventListener('keydown', (e) => {\n      if (e.key === 'Enter') create();\n      if (e.key === 'Escape') this._closeModal(overlay);\n    });\n  },\n\n  showCreateFileModal")
+
+# Delete dir modal template
+add(F, '<h3 class="obsigate-modal-title">Supprimer le dossier</h3>', '<h3 class="obsigate-modal-title">${t(\'modal.delete_dir\')}</h3>')
+add(F, '<strong>Attention !</strong> Cette action est irréversible.\n            <br>Tous les fichiers et sous-dossiers seront supprimés définitivement.',
+     '<strong>${t(\'modal.delete_warning\')}</strong> ${t(\'modal.delete_irreversible\')}\n            <br>${t(\'modal.delete_dir_warning\')}')
+add(F, '<label class="modal-label">Dossier à supprimer:</label>', '<label class="modal-label">${t(\'modal.dir_to_delete\')}</label>')
+
+# Delete dir action
+add(F, "confirmBtn.textContent = 'Suppression...';\n      \n      try {\n        const result = await api(`/api/directory",
+     "confirmBtn.textContent = t('modal.creating');\n      \n      try {\n        const result = await api(`/api/directory")
+add(F, "showToast(`Dossier supprimé (${result.deleted_count} fichiers)`, 'success');",
+     "showToast(t('toast.dir_deleted', {count: result.deleted_count}), 'success');")
+add(F, "showToast(err.message || 'Erreur lors de la suppression', 'error');\n        confirmBtn.disabled = false;\n        confirmBtn.textContent = 'Supprimer définitivement';\n      }\n    };\n    \n    confirmBtn.addEventListener('click', deleteDir);",
+     "showToast(err.message || t('toast.delete_error'), 'error');\n        confirmBtn.disabled = false;\n        confirmBtn.textContent = t('modal.delete_permanently');\n      }\n    };\n    \n    confirmBtn.addEventListener('click', deleteDir);")
+
+# Delete file modal template + action
+add(F, '<h3 class="obsigate-modal-title">Supprimer le fichier</h3>', '<h3 class="obsigate-modal-title">${t(\'modal.delete_file\')}</h3>')
+add(F, '<strong>Attention !</strong> Cette action est irréversible.\n          </div>\n        </div>\n        <div class="modal-form-group">\n          <label class="modal-label">Fichier à supprimer:',
+     '<strong>${t(\'modal.delete_warning\')}</strong> ${t(\'modal.delete_irreversible\')}\n          </div>\n        </div>\n        <div class="modal-form-group">\n          <label class="modal-label">${t(\'modal.file_to_delete\')}')
+add(F, 'data-i18n="common.cancel"', 'data-i18n="common.cancel"')  # no-op, placeholder
+
+# Replace all buttons in delete modals
+add(F, '<button class="modal-btn" id="del-cancel-btn">Annuler</button>', '<button class="modal-btn" id="del-cancel-btn">${t(\'common.cancel\')}</button>')
+add(F, '<button class="modal-btn danger" id="del-confirm-btn">Supprimer définitivement</button>', '<button class="modal-btn danger" id="del-confirm-btn">${t(\'modal.delete_permanently\')}</button>')
+
+# Delete file action  
+add(F, "confirmBtn.textContent = 'Suppression...';\n      \n      try {\n        await api(`/api/file/${encodeURIComponent(vault)}",
+     "confirmBtn.textContent = t('modal.creating');\n      \n      try {\n        await api(`/api/file/${encodeURIComponent(vault)}")
+add(F, "showToast('Fichier supprimé', 'success');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();\n        \n        if (state.currentVault === vault",
+     "showToast(t('toast.file_deleted'), 'success');\n        this._closeModal(overlay);\n        await refreshSidebarTreePreservingState();\n        \n        if (state.currentVault === vault")
+add(F, "showToast(err.message || 'Erreur lors de la suppression', 'error');\n        confirmBtn.disabled = false;\n        confirmBtn.textContent = 'Supprimer définitivement';\n      }\n    };\n    \n    confirmBtn.addEventListener('click', deleteFile);",
+     "showToast(err.message || t('toast.delete_error'), 'error');\n        confirmBtn.disabled = false;\n        confirmBtn.textContent = t('modal.delete_permanently');\n      }\n    };\n    \n    confirmBtn.addEventListener('click', deleteFile);")
+
+# Rename toasts
+add(F, "showToast(type === 'directory' ? 'Dossier renommé' : 'Fichier renommé', 'success');",
+     "showToast(type === 'directory' ? t('toast.dir_renamed') : t('toast.file_renamed'), 'success');")
+add(F, "showToast(err.message || 'Erreur lors du renommage', 'error');",
+     "showToast(err.message || t('toast.rename_error'), 'error');")
+
+# Copy path
+add(F, "showToast(`Chemin copié : ${path}`, 'success');",
+     "showToast(t('toast.path_copied', {path: path}), 'success');")
+add(F, "showToast('Erreur lors de la copie', 'error');",
+     "showToast(t('toast.copy_error'), 'error');")
+
+# Bookmark + dir saved search + viewer error
+add(F, 'showToast(data.bookmarked ? "Ajouté aux bookmarks" : "Retiré des bookmarks", "success");',
+     'showToast(data.bookmarked ? t("toast.bookmark_added") : t("toast.bookmark_removed"), "success");')
+add(F, 'showToast("Repertoire sauvegarde dans les recherches", "success");',
+     'showToast(t("toast.dir_saved_search"), "success");')
+add(F, 'showToast("Erreur lors du chargement du viewer: " + err.message, "error");',
+     'showToast(t("toast.viewer_error") + ": " + err.message, "error");')
+
+# ═══════ palette.js ═══════
+F = f"{BASE}/palette.js"
+add(F, 'confirm(`Supprimer le fichier \\"${path}\\" ?`)', 'confirm(t(\'confirm.delete_file_named\', {path: path}))')
+add(F, 'confirm(`Supprimer \\"${path}\\" et TOUT son contenu ?`)', 'confirm(t(\'confirm.delete_dir_named\', {path: path}))')
+add(F, "showToast('Erreur de création','error')", "showToast(t('toast.create_error'),'error')")
+add(F, "showToast('Erreur','error')", "showToast(t('common.error'),'error')")
+add(F, "showToast('Aucun fichier ouvert','error')", "showToast(t('toast.no_open_file'),'error')")
+
+# ═══════ search.js ═══════
+F = f"{BASE}/search.js"
+add(F, 'summaryText.textContent = `${data.total} résultat(s) pour "${freeText}" avec filtres`;',
+     'summaryText.textContent = t(\'search.results_filtered\', {count: data.total, query: freeText});')
+add(F, 'summaryText.textContent = `${data.total} résultat(s) pour "${freeText}"`;',
+     'summaryText.textContent = t(\'search.results_for\', {count: data.total, query: freeText});')
+add(F, 'summaryText.textContent = `${data.total} fichier(s) avec filtres`;',
+     'summaryText.textContent = t(\'search.files_filtered\', {count: data.total});')
+add(F, 'summaryText.textContent = `${data.total} résultat(s)`;',
+     'summaryText.textContent = t(\'search.results_count\', {count: data.total});')
+add(F, 'timeBadge.textContent = `(${data.query_time_ms} ms)`;',
+     'timeBadge.textContent = t(\'search.query_time\', {time: data.query_time_ms});')
+
+# ═══════ config.js ═══════
+F = f"{BASE}/config.js"
+add(F, 'title: "Application",', 'title: t("about.section_app"),')
+add(F, 'title: "Environnement",', 'title: t("about.section_env"),')
+add(F, 'title: "Composants",', 'title: t("about.section_components"),')
+for old_lbl, key in [('"Nom"',"about.name"),('"Version"',"about.version"),('"Version API"',"about.api_version"),
+    ('"Statut"',"about.status"),('"Vaults configurés"',"about.vaults_configured"),
+    ('"Fichiers indexés"',"about.files_indexed"),('"Navigateur"',"about.browser"),
+    ('"Plateforme"',"about.platform"),('"Langue"',"about.language"),('"Backend"',"about.backend"),
+    ('"Rendu Markdown"',"about.markdown_renderer"),('"Surveillance fichiers"',"about.file_watcher"),
+    ('"Frontend"',"about.frontend"),('"Icônes"',"about.icons"),
+    ('"Coloration syntaxe"',"about.syntax_highlight"),('"Éditeur"',"about.editor")]:
+    add(F, f'[{old_lbl},', f'[t("{key}"),')
+
+# ═══════ auth.js ═══════
+F = f"{BASE}/auth.js"
+add(F, 'Administration — Utilisateurs', "' + t('admin.title') + '")
+add(F, '+ Nouvel utilisateur', "' + t('admin.new_user') + '")
+
+# ═══════ viewer.js ═══════
+F = f"{BASE}/viewer.js"
+add(F, "titleInp.placeholder = 'Titre...'", "titleInp.placeholder = t('forge.title_placeholder')")
+add(F, 'title: "Ouvrir dans une nouvelle fenetre"', 'title: t("forge.popout")')
+add(F, 'document.createTextNode("pop-out")', 'document.createTextNode(t("forge.popout_label"))')
+
+# ═══════ dashboard.js ═══════
+F = f"{BASE}/dashboard.js"
+add(F, '\ud83d\udccb Copier', "' + t('dashboard.copy_btn') + '")
+add(F, '\ud83d\udcc2 Ouvrir', "' + t('dashboard.open_btn') + '")
+
+# ── APPLY (one read + write per file) ──
+print("Applying replacements per file...")
+for filepath in R:
+    with open(filepath, "r", encoding="utf-8") as fh:
+        content = fh.read()
+    changed = False
+    for find, repl in R[filepath]:
+        count = content.count(find)
+        if count == 0:
+            print(f"  SKIP {filepath.split('/')[-1]}: {find[:50]}...")
+            continue
+        content = content.replace(find, repl)
+        changed = True
+        print(f"  OK   {filepath.split('/')[-1]}: {count}× {find[:40]}")
+    if changed:
+        with open(filepath, "w", encoding="utf-8") as fh:
+            fh.write(content)
+
+print("Done.")
diff --git a/frontend/js/auth.js b/frontend/js/auth.js
index 737a810..cc44621 100644
--- a/frontend/js/auth.js
+++ b/frontend/js/auth.js
@@ -354,7 +354,7 @@ const AdminPanel = {
     this._modal.innerHTML = `
       <div class="editor-container">
         <div class="editor-header">
-          <div class="editor-title">⚙️ Administration — Utilisateurs</div>
+          <div class="editor-title">⚙️ ' + t('admin.title') + '</div>
           <div class="editor-actions">
             <button class="editor-btn" id="admin-close" title="Fermer">
               <i data-lucide="x" style="width:16px;height:16px"></i>
@@ -363,7 +363,7 @@ const AdminPanel = {
         </div>
         <div class="editor-body" id="admin-body">
           <div class="admin-toolbar">
-            <button class="btn-login" id="admin-add-user" style="font-size:0.85rem;padding:6px 16px;">+ Nouvel utilisateur</button>
+            <button class="btn-login" id="admin-add-user" style="font-size:0.85rem;padding:6px 16px;">' + t('admin.new_user') + '</button>
           </div>
           <div id="admin-users-list" class="admin-users-list"></div>
         </div>
diff --git a/frontend/js/config.js b/frontend/js/config.js
index c0e1e6a..2332ca7 100644
--- a/frontend/js/config.js
+++ b/frontend/js/config.js
@@ -875,7 +875,7 @@ function renderDiagnostics(container, data) {
     {
       title: "Index",
       rows: [
-        ["Fichiers indexés", data.index.total_files],
+        [t("about.files_indexed"), data.index.total_files],
         ["Tags uniques", data.index.total_tags],
         ["Vaults", Object.keys(data.index.vaults).join(", ")],
       ],
@@ -927,34 +927,34 @@ function loadAbout() {
     
     const sections = [
       {
-        title: "Application",
+        title: t("about.section_app"),
         rows: [
-          ["Nom", "ObsiGate"],
-          ["Version", state.APP_VERSION],
-          ["Version API", health.version || "—"],
-          ["Statut", health.status || "—"],
+          [t("about.name"), "ObsiGate"],
+          [t("about.version"), state.APP_VERSION],
+          [t("about.api_version"), health.version || "—"],
+          [t("about.status"), health.status || "—"],
         ],
       },
       {
-        title: "Environnement",
+        title: t("about.section_env"),
         rows: [
-          ["Vaults configurés", health.vaults || "—"],
-          ["Fichiers indexés", health.total_files || "—"],
-          ["Navigateur", navigator.userAgent.split(" ").pop()],
-          ["Plateforme", navigator.platform || "—"],
-          ["Langue", navigator.language || "—"],
+          [t("about.vaults_configured"), health.vaults || "—"],
+          [t("about.files_indexed"), health.total_files || "—"],
+          [t("about.browser"), navigator.userAgent.split(" ").pop()],
+          [t("about.platform"), navigator.platform || "—"],
+          [t("about.language"), navigator.language || "—"],
         ],
       },
       {
-        title: "Composants",
+        title: t("about.section_components"),
         rows: [
-          ["Backend", "FastAPI (Python)"],
-          ["Rendu Markdown", "mistune"],
-          ["Surveillance fichiers", "watchdog"],
-          ["Frontend", "Vanilla JavaScript"],
-          ["Icônes", "Lucide Icons"],
-          ["Coloration syntaxe", "highlight.js"],
-          ["Éditeur", "CodeMirror 6"],
+          [t("about.backend"), "FastAPI (Python)"],
+          [t("about.markdown_renderer"), "mistune"],
+          [t("about.file_watcher"), "watchdog"],
+          [t("about.frontend"), "Vanilla JavaScript"],
+          [t("about.icons"), "Lucide Icons"],
+          [t("about.syntax_highlight"), "highlight.js"],
+          [t("about.editor"), "CodeMirror 6"],
         ],
       },
     ];
diff --git a/frontend/js/dashboard.js b/frontend/js/dashboard.js
index 7bc2e11..b0932ec 100644
--- a/frontend/js/dashboard.js
+++ b/frontend/js/dashboard.js
@@ -4,6 +4,7 @@ import { state } from './state.js';
 import { escapeHtml, safeCreateIcons, getFileIcon } from './utils.js';
 import { icon, openFile } from './viewer.js';
 import { TabManager, showToast } from './ui.js';
+import { t, getLocale } from './i18n.js';
 
 // ---------------------------------------------------------------------------
 // Recent files
@@ -67,12 +68,12 @@ const DashboardSharedWidget = {
             <span class="shared-card-vault">${escapeHtml(s.vault)}</span>
           </div>
           <div class="shared-card-meta">
-            <span>${s.access_count || 0} vue(s)</span>
-            ${s.expires_at ? `<span>Expire le ${new Date(s.expires_at).toLocaleDateString("fr-FR")}</span>` : ""}
+            <span>${s.access_count || 0} ${t('dashboard.views', {count: s.access_count || 0})}</span>
+            ${s.expires_at ? `<span>${t('dashboard.expires', {date: new Date(s.expires_at).toLocaleDateString(getLocale() === 'fr' ? 'fr-FR' : 'en-US')})}</span>` : ""}
           </div>
           <div class="shared-card-actions">
-            <button class="shared-copy-btn" data-url="${window.location.origin}/s/${s.token}">📋 Copier</button>
-            <button class="shared-open-btn">📂 Ouvrir</button>
+            <button class="shared-copy-btn" data-url="${window.location.origin}/s/${s.token}">${t('dashboard.copy_btn')}</button>
+            <button class="shared-open-btn">${t('dashboard.open_btn')}</button>
             <button class="shared-revoke-btn" data-id="${s.id}">🗑</button>
           </div>
         </div>
diff --git a/frontend/js/palette.js b/frontend/js/palette.js
index 9c33b6a..4790aa9 100644
--- a/frontend/js/palette.js
+++ b/frontend/js/palette.js
@@ -3,6 +3,7 @@ import { api } from './auth.js';
 import { showToast, toggleTheme, TabManager } from './ui.js';
 import { openEditor } from './utils.js';
 import { state } from './state.js';
+import { t } from './i18n.js';
 
 function triggerGoHome() { const e = document.getElementById('header-logo'); if (e) e.click(); }
 
@@ -35,16 +36,16 @@ let _browseFilterTimer = null;  // debounce for global search
 // ── Commands ──
 const CMDS = [
   { id:'home',         label:'🏠 Accueil',               desc:"Retour à l'accueil",               cat:'Navigation',  act:()=>{close();triggerGoHome();} },
-  { id:'edit-current', label:'✏️ Éditer fichier courant', desc:'Ouvrir le fichier actif dans l\'éditeur', cat:'Fichiers', act:()=>{close();const f=getCurrentFile();if(f)openEditor(f.vault,f.path);else showToast('Aucun fichier ouvert','error');} },
-  { id:'popout',       label:'🪟 Pop-out',               desc:'Ouvrir le document dans une fenêtre',  cat:'Fichiers',  act:()=>{close();const f=getCurrentFile();if(f)window.open(`/popout/${encodeURIComponent(f.vault)}/${encodeURIComponent(f.path)}`,'popout','width=1000,height=700');else showToast('Aucun fichier ouvert','error');} },
+  { id:'edit-current', label:'✏️ Éditer fichier courant', desc:'Ouvrir le fichier actif dans l\'éditeur', cat:'Fichiers', act:()=>{close();const f=getCurrentFile();if(f)openEditor(f.vault,f.path);else showToast(t('toast.no_open_file'),'error');} },
+  { id:'popout',       label:'🪟 Pop-out',               desc:'Ouvrir le document dans une fenêtre',  cat:'Fichiers',  act:()=>{close();const f=getCurrentFile();if(f)window.open(`/popout/${encodeURIComponent(f.vault)}/${encodeURIComponent(f.path)}`,'popout','width=1000,height=700');else showToast(t('toast.no_open_file'),'error');} },
   { id:'create-file',  label:'📄 Créer fichier markdown', desc:'Choisir la vault, naviguer, puis nommer le fichier', cat:'Fichiers', act:()=>startBrowse('create-file') },
   { id:'delete-file',  label:'🗑️ Supprimer fichier',      desc:'Rechercher un fichier à supprimer', cat:'Fichiers', act:()=>startBrowse('delete-file') },
   { id:'delete-cur',   label:'🗑️ Supprimer fichier courant', desc:'Supprimer le fichier de l\'onglet actif', cat:'Fichiers', act:async()=>{close();await delCurFile();} },
-  { id:'close-cur',    label:'✕ Fermer fichier courant',  desc:'Fermer l\'onglet actif sans supprimer', cat:'Fichiers', act:()=>{close();const f=getCurrentFile();if(f){const tab=TabManager._tabs.find(t=>t.vault===f.vault&&t.path===f.path);if(tab)TabManager.close(tab.id);else triggerGoHome();}else{showToast('Aucun fichier ouvert','error');}} },
+  { id:'close-cur',    label:'✕ Fermer fichier courant',  desc:'Fermer l\'onglet actif sans supprimer', cat:'Fichiers', act:()=>{close();const f=getCurrentFile();if(f){const tab=TabManager._tabs.find(t=>t.vault===f.vault&&t.path===f.path);if(tab)TabManager.close(tab.id);else triggerGoHome();}else{showToast(t('toast.no_open_file'),'error');}} },
   { id:'create-dir',   label:'📁 Créer répertoire',       desc:'Choisir la vault, naviguer, puis nommer le dossier', cat:'Répertoires', act:()=>startBrowse('create-dir') },
   { id:'delete-dir',   label:'🗑️ Supprimer répertoire',   desc:'Choisir la vault, naviguer et supprimer', cat:'Répertoires', act:()=>startBrowse('delete-dir') },
   { id:'theme',        label:'🌓 Changer le thème',       desc:'Basculer clair/sombre',             cat:'Actions', act:()=>{close();toggleTheme();} },
-  { id:'reindex',      label:'🔄 Réindexer',              desc:'Forcer la réindexation complète',   cat:'Actions', act:async()=>{close();try{await api('/api/index/reload');showToast('Index rechargé','success');}catch{showToast('Erreur','error');}} },
+  { id:'reindex',      label:'🔄 Réindexer',              desc:'Forcer la réindexation complète',   cat:'Actions', act:async()=>{close();try{await api('/api/index/reload');showToast('Index rechargé','success');}catch{showToast(t('common.error'),'error');}} },
   { id:'help',         label:'❓ Aide',                   desc:'Ouvrir le guide',                   cat:'Système', act:()=>{close();const b=document.getElementById('help-open-btn');if(b)b.click();} },
   { id:'config',       label:'⚙️ Configuration',          desc:'Ouvrir les paramètres',             cat:'Système', act:()=>{close();const b=document.getElementById('config-open-btn');if(b)b.click();} },
 ];
@@ -232,20 +233,20 @@ function execNavGlobal(vault, goPath) {
 }
 
 async function execDelFileBrowsed(vault, path) {
-  if (!confirm(`Supprimer le fichier "${vault}/${path}" ?`)) return;
+  if (!confirm(t("confirm.delete_file_named", {path: vault + "/" + path}))) return;
   try {
     const d = await api(`/api/file/${encodeURIComponent(vault)}?path=${encodeURIComponent(path)}`, { method:'DELETE' });
     if (d?.status==='ok' || d?.success) { showToast(`🗑️ ${path} supprimé`,'success'); close(); refreshSidebar(); }
-    else showToast('Erreur','error');
+    else showToast(t('common.error'),'error');
   } catch(e) { showToast('Erreur : '+(e.message||e),'error'); }
 }
 
 async function execDelDirBrowsed(vault, path) {
-  if (!confirm(`Supprimer "${path}" et TOUT son contenu ?`)) return;
+  if (!confirm(t("confirm.delete_dir_named", {path: path}))) return;
   try {
     const d = await api(`/api/directory/${encodeURIComponent(vault)}?path=${encodeURIComponent(path)}`, { method:'DELETE' });
     if (d?.status==='ok' || d?.success) { showToast(`🗑️ ${path} supprimé`,'success'); close(); refreshSidebar(); }
-    else showToast('Erreur','error');
+    else showToast(t('common.error'),'error');
   } catch(e) { showToast('Erreur : '+(e.message||e),'error'); }
 }
 
@@ -337,7 +338,7 @@ async function execCreateFile(name) {
   try {
     const d = await api(`/api/file/${encodeURIComponent(_browse.vault)}`, { method:'POST', headers:{'Content-Type':'application/json'}, body:JSON.stringify({path:fp, content:`# ${name.replace('.md','')}\n\n`}) });
     if (d?.status==='ok' || d?.success) { showToast(`✅ ${fp} créé`,'success'); close(); openEditor(_browse.vault, fp); }
-    else showToast('Erreur de création','error');
+    else showToast(t('toast.create_error'),'error');
   } catch(e) { showToast('Erreur : '+(e.message||e),'error'); }
 }
 
@@ -346,37 +347,37 @@ async function execCreateDir(name) {
   try {
     const d = await api(`/api/directory/${encodeURIComponent(_browse.vault)}`, { method:'POST', headers:{'Content-Type':'application/json'}, body:JSON.stringify({path:dp}) });
     if (d?.status==='ok' || d?.success) { showToast(`📁 ${dp} créé`,'success'); close(); refreshSidebar(); }
-    else showToast('Erreur','error');
+    else showToast(t('common.error'),'error');
   } catch(e) { showToast('Erreur : '+(e.message||e),'error'); }
 }
 
 async function execDelDir(path) {
-  if (!confirm(`Supprimer "${path}" et TOUT son contenu ?`)) return;
+  if (!confirm(t("confirm.delete_dir_named", {path: path}))) return;
   try {
     const d = await api(`/api/directory/${encodeURIComponent(_browse.vault)}?path=${encodeURIComponent(path)}`, { method:'DELETE' });
     if (d?.status==='ok' || d?.success) { showToast(`🗑️ ${path} supprimé`,'success'); close(); refreshSidebar(); }
-    else showToast('Erreur','error');
+    else showToast(t('common.error'),'error');
   } catch(e) { showToast('Erreur : '+(e.message||e),'error'); }
 }
 
 async function execDelFile(path) {
-  if (!confirm(`Supprimer le fichier "${path}" ?`)) return;
+  if (!confirm(t("confirm.delete_file_named", {path: path}))) return;
   try {
     const d = await api(`/api/file/${encodeURIComponent(_browse.vault)}?path=${encodeURIComponent(path)}`, { method:'DELETE' });
     if (d?.status==='ok' || d?.success) { showToast(`🗑️ ${path} supprimé`,'success'); close(); refreshSidebar(); }
-    else showToast('Erreur','error');
+    else showToast(t('common.error'),'error');
   } catch(e) { showToast('Erreur : '+(e.message||e),'error'); }
 }
 
 async function delCurFile() {
   const f = getCurrentFile();
-  if (!f) { showToast('Aucun fichier ouvert','error'); return; }
-  if (!confirm(`Supprimer "${f.path}" ?`)) return;
+  if (!f) { showToast(t('toast.no_open_file'),'error'); return; }
+  if (!confirm(t("confirm.delete_file_named", {path: f.path}))) return;
   try {
     const d = await api(`/api/file/${encodeURIComponent(f.vault)}?path=${encodeURIComponent(f.path)}`, { method:'DELETE' });
     if (d?.status==='ok' || d?.success) { showToast(`🗑️ ${f.path} supprimé`,'success');
       const tab = TabManager._tabs.find(t=>t.vault===f.vault&&t.path===f.path); if(tab) TabManager.close(tab.id); triggerGoHome(); refreshSidebar(); }
-    else showToast('Erreur','error');
+    else showToast(t('common.error'),'error');
   } catch(e) { showToast('Erreur : '+(e.message||e),'error'); }
 }
 
diff --git a/frontend/js/search.js b/frontend/js/search.js
index b0584bc..3a49c1e 100644
--- a/frontend/js/search.js
+++ b/frontend/js/search.js
@@ -7,6 +7,7 @@ import { searchOffline } from './offline.js';
 import { _getEffective } from './config.js';
 import { TabManager, showToast } from './ui.js';
 import { addTagFilter, buildSearchResultsHeader, shouldDisplayPath, removeTagFilter, TagFilterService } from './sidebar.js';
+import { t } from './i18n.js';
 // ---------------------------------------------------------------------------
 // Search History Service (localStorage, LIFO, max 50, dedup)
 // ---------------------------------------------------------------------------
@@ -915,17 +916,17 @@ export function renderAdvancedSearchResults(data, query, tagFilter) {
   const freeText = parsed.freeText;
 
   if (freeText && tagFilter) {
-    summaryText.textContent = `${data.total} résultat(s) pour "${freeText}" avec filtres`;
+    summaryText.textContent = t('search.results_filtered', {count: data.total, query: freeText});
   } else if (freeText) {
-    summaryText.textContent = `${data.total} résultat(s) pour "${freeText}"`;
+    summaryText.textContent = t('search.results_for', {count: data.total, query: freeText});
   } else if (parsed.tags.length > 0 || tagFilter) {
-    summaryText.textContent = `${data.total} fichier(s) avec filtres`;
+    summaryText.textContent = t('search.files_filtered', {count: data.total});
   } else {
-    summaryText.textContent = `${data.total} résultat(s)`;
+    summaryText.textContent = t('search.results_count', {count: data.total});
   }
   if (data.query_time_ms !== undefined && data.query_time_ms > 0) {
     const timeBadge = el("span", { class: "search-time-badge" });
-    timeBadge.textContent = `(${data.query_time_ms} ms)`;
+    timeBadge.textContent = t('search.query_time', {time: data.query_time_ms});
     summaryText.appendChild(timeBadge);
   }
   header.appendChild(summaryText);
diff --git a/frontend/js/ui.js b/frontend/js/ui.js
index 1f2788a..382428c 100644
--- a/frontend/js/ui.js
+++ b/frontend/js/ui.js
@@ -660,7 +660,7 @@ const FileOperations = {
         <div class="modal-form-group">
           <label class="modal-label">Nom du dossier</label>
           <input type="text" class="modal-input" id="dir-name-input" placeholder="nouveau-dossier" />
-          <div class="modal-hint">Dans: ${parentPath || '/'}</div>
+          <div class="modal-hint">${t('modal.in_folder', {path: parentPath || '/'}</div>
           <div class="modal-error" id="dir-error" style="display:none;"></div>
         </div>
       </div>
@@ -711,7 +711,7 @@ const FileOperations = {
       
       const path = parentPath ? `${parentPath}/${name}` : name;
       createBtn.disabled = true;
-      createBtn.textContent = 'Création...';
+      createBtn.textContent = t('modal.creating');
       
       try {
         await api(`/api/directory/${encodeURIComponent(vault)}`, {
@@ -720,13 +720,13 @@ const FileOperations = {
           body: JSON.stringify({ path }),
         });
         
-        showToast(`Dossier "${name}" créé`, 'success');
+        showToast(t('toast.dir_created', {name: name}), 'success');
         this._closeModal(overlay);
         await refreshSidebarTreePreservingState();
       } catch (err) {
-        showToast(err.message || 'Erreur lors de la création', 'error');
+        showToast(err.message || t('toast.create_error'), 'error');
         createBtn.disabled = false;
-        createBtn.textContent = 'Créer';
+        createBtn.textContent = t('modal.create_btn');
       }
     };
     
@@ -745,17 +745,17 @@ const FileOperations = {
     modal.className = 'obsigate-modal';
     modal.innerHTML = `
       <div class="obsigate-modal-header">
-        <h3 class="obsigate-modal-title">Créer un fichier</h3>
+        <h3 class="obsigate-modal-title">${t('modal.create_file')}</h3>
       </div>
       <div class="obsigate-modal-body">
         <div class="modal-form-group">
-          <label class="modal-label">Nom du fichier</label>
+          <label class="modal-label">${t('modal.file_name')}</label>
           <input type="text" class="modal-input" id="file-name-input" placeholder="note.md" />
-          <div class="modal-hint">Dans: ${parentPath || '/'}</div>
+          <div class="modal-hint">${t('modal.in_folder', {path: parentPath || '/'}</div>
           <div class="modal-error" id="file-error" style="display:none;"></div>
         </div>
         <div class="modal-form-group">
-          <label class="modal-label">Type de fichier</label>
+          <label class="modal-label">${t('modal.file_type')}</label>
           <select class="modal-select" id="file-ext-select">
             <option value=".md">Markdown (.md)</option>
             <option value=".txt">Texte (.txt)</option>
@@ -769,8 +769,8 @@ const FileOperations = {
         </div>
       </div>
       <div class="obsigate-modal-footer">
-        <button class="modal-btn" id="file-cancel-btn">Annuler</button>
-        <button class="modal-btn primary" id="file-create-btn">Créer</button>
+        <button class="modal-btn" id="file-cancel-btn">${t('common.cancel')}</button>
+        <button class="modal-btn primary" id="file-create-btn">${t('modal.create_btn')}</button>
       </div>
     `;
     
@@ -821,7 +821,7 @@ const FileOperations = {
       
       const path = parentPath ? `${parentPath}/${name}` : name;
       createBtn.disabled = true;
-      createBtn.textContent = 'Création...';
+      createBtn.textContent = t('modal.creating');
       
       try {
         await api(`/api/file/${encodeURIComponent(vault)}`, {
@@ -830,14 +830,14 @@ const FileOperations = {
           body: JSON.stringify({ path, content: '' }),
         });
         
-        showToast(`Fichier "${name}" créé`, 'success');
+        showToast(t('toast.file_created', {name: name}), 'success');
         this._closeModal(overlay);
         await refreshSidebarTreePreservingState();
         openFile(vault, path);
       } catch (err) {
-        showToast(err.message || 'Erreur lors de la création', 'error');
+        showToast(err.message || t('toast.create_error'), 'error');
         createBtn.disabled = false;
-        createBtn.textContent = 'Créer';
+        createBtn.textContent = t('modal.create_btn');
       }
     };
     
@@ -926,10 +926,10 @@ const FileOperations = {
           await focusPathInSidebar(vault, state.currentPath, { alignToTop: false });
         }
 
-        showToast(type === 'directory' ? 'Dossier renommé' : 'Fichier renommé', 'success');
+        showToast(type === 'directory' ? t('toast.dir_renamed') : t('toast.file_renamed'), 'success');
       } catch (err) {
         input.disabled = false;
-        showToast(err.message || 'Erreur lors du renommage', 'error');
+        showToast(err.message || t('toast.rename_error'), 'error');
         input.focus();
         input.select();
         return;
@@ -964,24 +964,24 @@ const FileOperations = {
     modal.className = 'obsigate-modal';
     modal.innerHTML = `
       <div class="obsigate-modal-header">
-        <h3 class="obsigate-modal-title">Supprimer le dossier</h3>
+        <h3 class="obsigate-modal-title">${t('modal.delete_dir')}</h3>
       </div>
       <div class="obsigate-modal-body">
         <div class="modal-warning">
           <i data-lucide="alert-triangle" class="icon"></i>
           <div>
-            <strong>Attention !</strong> Cette action est irréversible.
-            <br>Tous les fichiers et sous-dossiers seront supprimés définitivement.
+            <strong>${t('modal.delete_warning')}</strong> ${t('modal.delete_irreversible')}
+            <br>${t('modal.delete_dir_warning')}
           </div>
         </div>
         <div class="modal-form-group">
-          <label class="modal-label">Dossier à supprimer:</label>
+          <label class="modal-label">${t('modal.dir_to_delete')}</label>
           <div style="font-family: 'JetBrains Mono', monospace; color: var(--text-muted);">${path}</div>
         </div>
       </div>
       <div class="obsigate-modal-footer">
-        <button class="modal-btn" id="del-cancel-btn">Annuler</button>
-        <button class="modal-btn danger" id="del-confirm-btn">Supprimer définitivement</button>
+        <button class="modal-btn" id="del-cancel-btn">${t('common.cancel')}</button>
+        <button class="modal-btn danger" id="del-confirm-btn">${t('modal.delete_permanently')}</button>
       </div>
     `;
     
@@ -996,14 +996,14 @@ const FileOperations = {
     
     const deleteDir = async () => {
       confirmBtn.disabled = true;
-      confirmBtn.textContent = 'Suppression...';
+      confirmBtn.textContent = t('modal.creating');
       
       try {
         const result = await api(`/api/directory/${encodeURIComponent(vault)}?path=${encodeURIComponent(path)}`, {
           method: 'DELETE',
         });
         
-        showToast(`Dossier supprimé (${result.deleted_count} fichiers)`, 'success');
+        showToast(t('toast.dir_deleted', {count: result.deleted_count}), 'success');
         this._closeModal(overlay);
         await refreshSidebarTreePreservingState();
         
@@ -1011,9 +1011,9 @@ const FileOperations = {
           showWelcome();
         }
       } catch (err) {
-        showToast(err.message || 'Erreur lors de la suppression', 'error');
+        showToast(err.message || t('toast.delete_error'), 'error');
         confirmBtn.disabled = false;
-        confirmBtn.textContent = 'Supprimer définitivement';
+        confirmBtn.textContent = t('modal.delete_permanently');
       }
     };
     
@@ -1027,23 +1027,23 @@ const FileOperations = {
     modal.className = 'obsigate-modal';
     modal.innerHTML = `
       <div class="obsigate-modal-header">
-        <h3 class="obsigate-modal-title">Supprimer le fichier</h3>
+        <h3 class="obsigate-modal-title">${t('modal.delete_file')}</h3>
       </div>
       <div class="obsigate-modal-body">
         <div class="modal-warning">
           <i data-lucide="alert-triangle" class="icon"></i>
           <div>
-            <strong>Attention !</strong> Cette action est irréversible.
+            <strong>${t('modal.delete_warning')}</strong> ${t('modal.delete_irreversible')}
           </div>
         </div>
         <div class="modal-form-group">
-          <label class="modal-label">Fichier à supprimer:</label>
+          <label class="modal-label">${t('modal.file_to_delete')}</label>
           <div style="font-family: 'JetBrains Mono', monospace; color: var(--text-muted);">${path}</div>
         </div>
       </div>
       <div class="obsigate-modal-footer">
-        <button class="modal-btn" id="del-cancel-btn">Annuler</button>
-        <button class="modal-btn danger" id="del-confirm-btn">Supprimer définitivement</button>
+        <button class="modal-btn" id="del-cancel-btn">${t('common.cancel')}</button>
+        <button class="modal-btn danger" id="del-confirm-btn">${t('modal.delete_permanently')}</button>
       </div>
     `;
     
@@ -1058,14 +1058,14 @@ const FileOperations = {
     
     const deleteFile = async () => {
       confirmBtn.disabled = true;
-      confirmBtn.textContent = 'Suppression...';
+      confirmBtn.textContent = t('modal.creating');
       
       try {
         await api(`/api/file/${encodeURIComponent(vault)}?path=${encodeURIComponent(path)}`, {
           method: 'DELETE',
         });
         
-        showToast('Fichier supprimé', 'success');
+        showToast(t('toast.file_deleted'), 'success');
         this._closeModal(overlay);
         await refreshSidebarTreePreservingState();
         
@@ -1073,9 +1073,9 @@ const FileOperations = {
           showWelcome();
         }
       } catch (err) {
-        showToast(err.message || 'Erreur lors de la suppression', 'error');
+        showToast(err.message || t('toast.delete_error'), 'error');
         confirmBtn.disabled = false;
-        confirmBtn.textContent = 'Supprimer définitivement';
+        confirmBtn.textContent = t('modal.delete_permanently');
       }
     };
     
@@ -1772,7 +1772,7 @@ export const ContextMenuManager = {
     // Try modern clipboard API first, fall back to execCommand for non-secure contexts
     if (navigator.clipboard && navigator.clipboard.writeText) {
       navigator.clipboard.writeText(path).then(() => {
-        showToast(`Chemin copié : ${path}`, 'success');
+        showToast(t('toast.path_copied', {path: path}), 'success');
       }).catch(() => {
         this._copyPathFallback(path);
       });
@@ -1793,12 +1793,12 @@ export const ContextMenuManager = {
     try {
       const success = document.execCommand('copy');
       if (success) {
-        showToast(`Chemin copié : ${path}`, 'success');
+        showToast(t('toast.path_copied', {path: path}), 'success');
       } else {
-        showToast('Erreur lors de la copie', 'error');
+        showToast(t('toast.copy_error'), 'error');
       }
     } catch (e) {
-      showToast('Erreur lors de la copie', 'error');
+      showToast(t('toast.copy_error'), 'error');
     }
     document.body.removeChild(textarea);
   },
@@ -1810,7 +1810,7 @@ export const ContextMenuManager = {
         headers: { "Content-Type": "application/json" },
         body: JSON.stringify({ vault: this._targetVault, path: this._targetPath, title: this._targetPath.split("/").pop() }),
       });
-      showToast(data.bookmarked ? "Ajouté aux bookmarks" : "Retiré des bookmarks", "success");
+      showToast(data.bookmarked ? t("toast.bookmark_added") : t("toast.bookmark_removed"), "success");
       if (typeof DashboardBookmarkWidget !== "undefined" && DashboardBookmarkWidget.load) {
         DashboardBookmarkWidget.load();
       }
@@ -1835,7 +1835,7 @@ export const ContextMenuManager = {
           exclude_paths: "",
         }),
       });
-      showToast("Repertoire sauvegarde dans les recherches", "success");
+      showToast(t("toast.dir_saved_search"), "success");
       // Switch to saved searches tab
       var savedTab = document.getElementById("sidebar-tab-saved");
       if (savedTab) savedTab.click();
@@ -1849,7 +1849,7 @@ export const ContextMenuManager = {
     import('./backups.js').then(mod => {
       mod.openBackupViewer(this._targetVault, this._targetPath);
     }).catch(err => {
-      showToast("Erreur lors du chargement du viewer: " + err.message, "error");
+      showToast(t("toast.viewer_error") + ": " + err.message, "error");
     });
     this.hide();
   }
diff --git a/frontend/js/viewer.js b/frontend/js/viewer.js
index cb7620e..3546884 100644
--- a/frontend/js/viewer.js
+++ b/frontend/js/viewer.js
@@ -10,6 +10,7 @@ import { renderMermaidBlocks } from './mermaid-viewer.js';
 import { DashboardStatsWidget, DashboardRecentWidget, DashboardBookmarkWidget, DashboardSharedWidget, DashboardConflictsWidget } from './dashboard.js';
 import { openShareDialog } from './config.js';
 import { cacheViewedFile, getCachedFile } from './offline.js';
+import { t } from './i18n.js';
 // ---------------------------------------------------------------------------
 // Outline/TOC Manager
 // ---------------------------------------------------------------------------
@@ -534,7 +535,7 @@ export function renderFile(data) {
     var titleInp = document.getElementById("editor-title-input");
     var fileInp = document.getElementById("editor-filename-input");
     if (brand) brand.textContent = "Forge";
-    if (titleInp) { titleInp.value = data.title || ''; titleInp.placeholder = 'Titre...'; }
+    if (titleInp) { titleInp.value = data.title || ''; titleInp.placeholder = t('forge.title_placeholder'); }
     if (fileInp) fileInp.value = data.path.split('/').pop();
     bodyEl.innerHTML = "";
     bodyEl.style.overflow = "hidden";
@@ -547,7 +548,7 @@ export function renderFile(data) {
     safeCreateIcons();
   });
 
-  const openNewWindowBtn = el("button", { class: "btn-action", title: "Ouvrir dans une nouvelle fenetre" }, [icon("external-link", 14), document.createTextNode("pop-out")]);
+  const openNewWindowBtn = el("button", { class: "btn-action", title: t("forge.popout") }, [icon("external-link", 14), document.createTextNode(t("forge.popout_label"))]);
   openNewWindowBtn.addEventListener("click", () => {
     const popoutUrl = `/popout/${encodeURIComponent(data.vault)}/${encodeURIComponent(data.path)}`;
     window.open(popoutUrl, `popout_${data.vault}_${data.path.replace(/[^a-zA-Z0-9]/g, "_")}`, "width=1000,height=700,menubar=no,toolbar=no,location=no,status=no,resizable=yes,scrollbars=no");
diff --git a/frontend/locales/en.json b/frontend/locales/en.json
index 318b432..b7bb6f9 100644
--- a/frontend/locales/en.json
+++ b/frontend/locales/en.json
@@ -1,6 +1,8 @@
 {
-  "_meta": { "locale": "en", "name": "English" },
-
+  "_meta": {
+    "locale": "en",
+    "name": "English"
+  },
   "header.logo": "ObsiGate",
   "header.search_placeholder": "Search all vaults...",
   "header.config": "Settings",
@@ -26,7 +28,6 @@
   "header.sidebar_toggle": "Toggle sidebar",
   "header.menu_toggle": "Menu",
   "header.quick_help": "Quick Help",
-
   "sidebar.filter_placeholder": "Filter files...",
   "sidebar.tab_vaults": "Vaults",
   "sidebar.tab_tags": "Tags",
@@ -49,7 +50,6 @@
   "sidebar.vault_specific": "Specific vault",
   "sidebar.sidebar_dropdown": "Vault context menu",
   "sidebar.sidebar_filtering": "Sidebar filtering",
-
   "search.operators_help": "Operators: tag:word, vault:name, title:word, path:word, ext:md",
   "search.results_count": "{count} result(s)",
   "search.no_results": "No results found",
@@ -80,7 +80,6 @@
   "search.advanced_operators": "Advanced operators",
   "search.include_placeholder": "Include: **/*.md, notes/**",
   "search.exclude_placeholder": "Exclude: vendor/*, *.lock",
-
   "viewer.source": "Source",
   "viewer.markdown": "Markdown",
   "viewer.edit": "Edit",
@@ -108,7 +107,6 @@
   "viewer.breadcrumb_home": "Home",
   "viewer.unsupported_file": "This file is binary and cannot be displayed",
   "viewer.click_to_download": "Click to download",
-
   "editor.save": "Save",
   "editor.cancel": "Cancel",
   "editor.saved": "Saved ✓",
@@ -122,7 +120,6 @@
   "editor.close": "Close",
   "editor.forge_help": "Forge editor help",
   "editor.forge_close_editor": "Close editor / modal",
-
   "ai.toolbar_edit": "Edit",
   "ai.toolbar_tone": "Tone",
   "ai.toolbar_translate": "Translate",
@@ -150,7 +147,6 @@
   "ai.done": "AI: text processed",
   "ai.completion_added": "AI: completion added",
   "ai.rewrite_done": "AI: text rewritten",
-
   "dashboard.welcome": "Welcome to ObsiGate",
   "dashboard.stats": "Statistics",
   "dashboard.bookmarks": "Bookmarks",
@@ -165,7 +161,6 @@
   "dashboard.no_recent": "No recent files",
   "dashboard.no_shares": "No shared documents",
   "dashboard.shares": "Shares",
-
   "config.title": "Settings",
   "config.section_search": "Search settings",
   "config.section_perf": "Performance",
@@ -241,7 +236,6 @@
   "config.hidden_include_label": "Include hidden files",
   "config.hidden_whitelist_label": "Whitelist (comma-separated)",
   "config.save_hidden": "Save",
-
   "help.title": "ObsiGate Help",
   "help.shortcuts": "Keyboard shortcuts",
   "help.search_operators": "Search operators",
@@ -405,7 +399,6 @@
   "help.footer": "© 2026 — Made with ☕, 🎧 and a few",
   "help.nights": "sleepless nights 😅",
   "help.powered_by": "Powered by Python, FastAPI, vanilla JS, CodeMirror, Mermaid, Lucide Icons and ❤️ for Obsidian.",
-
   "auth.login_title": "Secure access to your vaults",
   "auth.username": "Username",
   "auth.password": "Password",
@@ -415,7 +408,6 @@
   "auth.network_error": "Network error — check your connection",
   "auth.logged_out": "Signed out",
   "auth.session_expired": "Session expired, please sign in again",
-
   "share.title": "Public share",
   "share.create": "Create share link",
   "share.copy_link": "Copy link",
@@ -423,7 +415,6 @@
   "share.expires": "Expires on",
   "share.never": "Never",
   "share.copied": "Link copied!",
-
   "backup.title": "Backups",
   "backup.restore": "Restore",
   "backup.delete": "Delete",
@@ -432,7 +423,6 @@
   "backup.no_backups": "No backups",
   "backup.preview": "Preview",
   "backup.version": "Version from {date}",
-
   "graph.title": "Graph",
   "graph.fullscreen": "Full screen",
   "graph.export_png": "Export PNG",
@@ -444,31 +434,26 @@
   "graph.forward": "Forward",
   "graph.parent": "Parent",
   "graph.loading": "Building graph...",
-
   "mermaid.code": "Code",
   "mermaid.preview": "Preview",
   "mermaid.copy_svg": "Copy SVG",
   "mermaid.download_png": "Download PNG",
   "mermaid.zoom_in": "Zoom in",
   "mermaid.zoom_out": "Zoom out",
-
   "palette.search_files": "Search files...",
   "palette.search_commands": "Type a command...",
   "palette.mode_files": "Files",
   "palette.mode_commands": "Commands",
-
   "offline.status": "Offline",
   "offline.pending": "{count} pending change(s)",
   "offline.sync_now": "Sync now",
   "offline.conflict_title": "Sync conflict",
   "offline.keep_local": "Keep local version",
   "offline.keep_server": "Keep server version",
-
   "conflict.resolve_local": "Keep local version",
   "conflict.resolve_conflict": "Keep conflict version",
   "conflict.no_conflicts": "No conflicts detected",
   "conflict.resolved": "Conflict resolved",
-
   "common.loading": "Loading...",
   "common.error": "Error",
   "common.ok": "OK",
@@ -494,7 +479,6 @@
   "common.all": "All",
   "common.none": "None",
   "common.actions": "Actions",
-
   "toast.saved": "Saved",
   "toast.deleted": "Deleted",
   "toast.created": "Created",
@@ -526,16 +510,13 @@
   "toast.conflict_resolved": "Conflict resolved",
   "toast.search_saved": "Search saved",
   "toast.hidden_saved": "✓ Settings saved",
-
   "confirm.logout": "Are you sure you want to sign out?",
   "confirm.delete_file": "Permanently delete this file?",
   "confirm.delete_dir": "Delete this folder and all its contents?",
-
   "pwa.install_title": "Install ObsiGate",
   "pwa.install_desc": "Install this app on your device for quick access.",
   "pwa.install_button": "Install",
   "pwa.dismiss": "Later",
-
   "file.new_file": "New file",
   "file.new_folder": "New folder",
   "file.rename": "Rename",
@@ -543,13 +524,79 @@
   "file.copy_path": "Copy path",
   "file.properties": "Properties",
   "file.graph_view": "Graph view",
-
   "vault.add_dynamic": "Add vault",
   "vault.remove_dynamic": "Remove vault",
   "vault.reindex": "Reindex vault",
-
   "theme.light": "Light",
   "theme.dark": "Dark",
   "theme.change": "Change theme",
-  "theme.title": "Theme"
-}
+  "theme.title": "Theme",
+  "modal.create_file": "Create a file",
+  "modal.file_name": "File name",
+  "modal.file_type": "File type",
+  "modal.in_folder": "In: {path}",
+  "modal.create_btn": "Create",
+  "modal.creating": "Creating...",
+  "modal.delete_file": "Delete file",
+  "modal.delete_dir": "Delete folder",
+  "modal.delete_warning": "Warning!",
+  "modal.delete_irreversible": "This action is irreversible.",
+  "modal.delete_dir_warning": "All files and subfolders will be permanently deleted.",
+  "modal.file_to_delete": "File to delete:",
+  "modal.dir_to_delete": "Folder to delete:",
+  "modal.delete_permanently": "Delete permanently",
+  "admin.title": "Administration — Users",
+  "admin.new_user": "+ New user",
+  "admin.close": "Close",
+  "about.section_app": "Application",
+  "about.section_env": "Environment",
+  "about.section_components": "Components",
+  "about.name": "Name",
+  "about.version": "Version",
+  "about.api_version": "API version",
+  "about.status": "Status",
+  "about.vaults_configured": "Configured vaults",
+  "about.files_indexed": "Indexed files",
+  "about.browser": "Browser",
+  "about.platform": "Platform",
+  "about.language": "Language",
+  "about.backend": "Backend",
+  "about.markdown_renderer": "Markdown rendering",
+  "about.file_watcher": "File watching",
+  "about.frontend": "Frontend",
+  "about.icons": "Icons",
+  "about.syntax_highlight": "Syntax highlighting",
+  "about.editor": "Editor",
+  "forge.title_placeholder": "Title...",
+  "forge.popout": "Open in new window",
+  "forge.popout_label": "pop-out",
+  "dashboard.views": "{count} view(s)",
+  "dashboard.expires": "Expires {date}",
+  "dashboard.copy_btn": "Copy",
+  "dashboard.open_btn": "Open",
+  "search.results_for": "{count} result(s) for \"{query}\"",
+  "search.results_filtered": "{count} result(s) for \"{query}\" with filters",
+  "search.files_filtered": "{count} file(s) with filters",
+  "search.query_time": "({time} ms)",
+  "toast.file_created": "File \"{name}\" created",
+  "toast.dir_created": "Folder \"{name}\" created",
+  "toast.dir_deleted": "Folder deleted ({count} files)",
+  "toast.path_copied": "Path copied: {path}",
+  "toast.create_error": "Creation error",
+  "toast.rename_error": "Rename error",
+  "toast.delete_error": "Deletion error",
+  "toast.copy_error": "Copy error",
+  "toast.bookmark_added": "Added to bookmarks",
+  "toast.bookmark_removed": "Removed from bookmarks",
+  "toast.dir_saved_search": "Folder saved to searches",
+  "toast.no_open_file": "No file open",
+  "toast.viewer_error": "Viewer loading error",
+  "confirm.delete_file_named": "Delete file \"{path}\"?",
+  "confirm.delete_dir_named": "Delete \"{path}\" and ALL its contents?",
+  "tree.new_file": "New file",
+  "tree.new_folder": "New folder",
+  "tree.vault_home": "Vault home",
+  "toc.title": "ON THIS PAGE",
+  "toc.hide_panel": "Hide panel",
+  "toc.no_headings": "No headings in this document"
+}
\ No newline at end of file
diff --git a/frontend/locales/fr.json b/frontend/locales/fr.json
index 0e27541..56fb9b2 100644
--- a/frontend/locales/fr.json
+++ b/frontend/locales/fr.json
@@ -1,6 +1,8 @@
 {
-  "_meta": { "locale": "fr", "name": "Français" },
-
+  "_meta": {
+    "locale": "fr",
+    "name": "Français"
+  },
   "header.logo": "ObsiGate",
   "header.search_placeholder": "Rechercher dans toutes les vaults...",
   "header.config": "Configuration",
@@ -26,7 +28,6 @@
   "header.sidebar_toggle": "Afficher/Masquer la sidebar",
   "header.menu_toggle": "Menu",
   "header.quick_help": "Raccourcis & Astuces",
-
   "sidebar.filter_placeholder": "Filtrer fichiers...",
   "sidebar.tab_vaults": "Vaults",
   "sidebar.tab_tags": "Tags",
@@ -49,7 +50,6 @@
   "sidebar.vault_specific": "Vault spécifique",
   "sidebar.sidebar_dropdown": "Menu contextuel vault",
   "sidebar.sidebar_filtering": "Filtrage de la sidebar",
-
   "search.operators_help": "Opérateurs : tag:mot, vault:nom, title:mot, path:mot, ext:md",
   "search.results_count": "{count} résultat(s)",
   "search.no_results": "Aucun résultat trouvé",
@@ -80,7 +80,6 @@
   "search.advanced_operators": "Opérateurs avancés",
   "search.include_placeholder": "Inclure: **/*.md, notes/**",
   "search.exclude_placeholder": "Exclure: vendor/*, *.lock",
-
   "viewer.source": "Source",
   "viewer.markdown": "Markdown",
   "viewer.edit": "Éditer",
@@ -108,7 +107,6 @@
   "viewer.breadcrumb_home": "Accueil",
   "viewer.unsupported_file": "Ce fichier est binaire et ne peut pas être affiché",
   "viewer.click_to_download": "Cliquez pour le télécharger",
-
   "editor.save": "Enregistrer",
   "editor.cancel": "Annuler",
   "editor.saved": "Sauvegardé ✓",
@@ -122,7 +120,6 @@
   "editor.close": "Fermer",
   "editor.forge_help": "Aide de l'éditeur Forge",
   "editor.forge_close_editor": "Fermer l'éditeur / modale",
-
   "ai.toolbar_edit": "Éditer",
   "ai.toolbar_tone": "Ton",
   "ai.toolbar_translate": "Traduire",
@@ -150,7 +147,6 @@
   "ai.done": "AI: texte traité",
   "ai.completion_added": "AI: complétion ajoutée",
   "ai.rewrite_done": "AI: texte réécrit",
-
   "dashboard.welcome": "Bienvenue dans ObsiGate",
   "dashboard.stats": "Statistiques",
   "dashboard.bookmarks": "Favoris",
@@ -165,7 +161,6 @@
   "dashboard.no_recent": "Aucun fichier récent",
   "dashboard.no_shares": "Aucun document partagé",
   "dashboard.shares": "Partages",
-
   "config.title": "Configuration",
   "config.section_search": "Paramètres de recherche",
   "config.section_perf": "Performance",
@@ -241,7 +236,6 @@
   "config.hidden_include_label": "Inclure les fichiers cachés",
   "config.hidden_whitelist_label": "Whitelist (séparés par des virgules)",
   "config.save_hidden": "Enregistrer",
-
   "help.title": "Aide ObsiGate",
   "help.shortcuts": "Raccourcis clavier",
   "help.search_operators": "Opérateurs de recherche",
@@ -405,7 +399,6 @@
   "help.footer": "&copy; 2026 — Fait avec ☕, 🎧 et quelques",
   "help.nights": "nuits blanches 😅",
   "help.powered_by": "Propulsé par Python, FastAPI, vanilla JS, CodeMirror, Mermaid, Lucide Icons et ❤️ pour Obsidian.",
-
   "auth.login_title": "Accès sécurisé à vos vaults",
   "auth.username": "Nom d'utilisateur",
   "auth.password": "Mot de passe",
@@ -415,7 +408,6 @@
   "auth.network_error": "Erreur réseau — vérifiez votre connexion",
   "auth.logged_out": "Déconnecté",
   "auth.session_expired": "Session expirée, veuillez vous reconnecter",
-
   "share.title": "Partage public",
   "share.create": "Créer un lien de partage",
   "share.copy_link": "Copier le lien",
@@ -423,7 +415,6 @@
   "share.expires": "Expire le",
   "share.never": "Jamais",
   "share.copied": "Lien copié !",
-
   "backup.title": "Sauvegardes",
   "backup.restore": "Restaurer",
   "backup.delete": "Supprimer",
@@ -432,7 +423,6 @@
   "backup.no_backups": "Aucune sauvegarde",
   "backup.preview": "Aperçu",
   "backup.version": "Version du {date}",
-
   "graph.title": "Graphe",
   "graph.fullscreen": "Plein écran",
   "graph.export_png": "Exporter PNG",
@@ -444,31 +434,26 @@
   "graph.forward": "Avancer",
   "graph.parent": "Parent",
   "graph.loading": "Construction du graphe...",
-
   "mermaid.code": "Code",
   "mermaid.preview": "Aperçu",
   "mermaid.copy_svg": "Copier SVG",
   "mermaid.download_png": "Télécharger PNG",
   "mermaid.zoom_in": "Zoom avant",
   "mermaid.zoom_out": "Zoom arrière",
-
   "palette.search_files": "Rechercher un fichier...",
   "palette.search_commands": "Tapez une commande...",
   "palette.mode_files": "Fichiers",
   "palette.mode_commands": "Commandes",
-
   "offline.status": "Hors-ligne",
   "offline.pending": "{count} modification(s) en attente",
   "offline.sync_now": "Synchroniser maintenant",
   "offline.conflict_title": "Conflit de synchronisation",
   "offline.keep_local": "Garder version locale",
   "offline.keep_server": "Garder version serveur",
-
   "conflict.resolve_local": "Garder version locale",
   "conflict.resolve_conflict": "Garder version conflit",
   "conflict.no_conflicts": "Aucun conflit détecté",
   "conflict.resolved": "Conflit résolu",
-
   "common.loading": "Chargement...",
   "common.error": "Erreur",
   "common.ok": "OK",
@@ -494,7 +479,6 @@
   "common.all": "Tous",
   "common.none": "Aucun",
   "common.actions": "Actions",
-
   "toast.saved": "Sauvegardé",
   "toast.deleted": "Supprimé",
   "toast.created": "Créé",
@@ -526,16 +510,13 @@
   "toast.conflict_resolved": "Conflit résolu",
   "toast.search_saved": "Recherche sauvegardée",
   "toast.hidden_saved": "✓ Paramètres sauvegardés",
-
   "confirm.logout": "Voulez-vous vraiment vous déconnecter ?",
   "confirm.delete_file": "Supprimer définitivement ce fichier ?",
   "confirm.delete_dir": "Supprimer ce dossier et tout son contenu ?",
-
   "pwa.install_title": "Installer ObsiGate",
   "pwa.install_desc": "Installez cette application sur votre appareil pour un accès rapide.",
   "pwa.install_button": "Installer",
   "pwa.dismiss": "Plus tard",
-
   "file.new_file": "Nouveau fichier",
   "file.new_folder": "Nouveau dossier",
   "file.rename": "Renommer",
@@ -543,13 +524,79 @@
   "file.copy_path": "Copier le chemin",
   "file.properties": "Propriétés",
   "file.graph_view": "Vue graphe",
-
   "vault.add_dynamic": "Ajouter une vault",
   "vault.remove_dynamic": "Retirer la vault",
   "vault.reindex": "Réindexer la vault",
-
   "theme.light": "Clair",
   "theme.dark": "Sombre",
   "theme.change": "Changer le thème",
-  "theme.title": "Thème"
-}
+  "theme.title": "Thème",
+  "modal.create_file": "Créer un fichier",
+  "modal.file_name": "Nom du fichier",
+  "modal.file_type": "Type de fichier",
+  "modal.in_folder": "Dans: {path}",
+  "modal.create_btn": "Créer",
+  "modal.creating": "Création...",
+  "modal.delete_file": "Supprimer le fichier",
+  "modal.delete_dir": "Supprimer le dossier",
+  "modal.delete_warning": "Attention !",
+  "modal.delete_irreversible": "Cette action est irréversible.",
+  "modal.delete_dir_warning": "Tous les fichiers et sous-dossiers seront supprimés définitivement.",
+  "modal.file_to_delete": "Fichier à supprimer:",
+  "modal.dir_to_delete": "Dossier à supprimer:",
+  "modal.delete_permanently": "Supprimer définitivement",
+  "admin.title": "Administration — Utilisateurs",
+  "admin.new_user": "+ Nouvel utilisateur",
+  "admin.close": "Fermer",
+  "about.section_app": "Application",
+  "about.section_env": "Environnement",
+  "about.section_components": "Composants",
+  "about.name": "Nom",
+  "about.version": "Version",
+  "about.api_version": "Version API",
+  "about.status": "Statut",
+  "about.vaults_configured": "Vaults configurés",
+  "about.files_indexed": "Fichiers indexés",
+  "about.browser": "Navigateur",
+  "about.platform": "Plateforme",
+  "about.language": "Langue",
+  "about.backend": "Backend",
+  "about.markdown_renderer": "Rendu Markdown",
+  "about.file_watcher": "Surveillance fichiers",
+  "about.frontend": "Frontend",
+  "about.icons": "Icônes",
+  "about.syntax_highlight": "Coloration syntaxe",
+  "about.editor": "Éditeur",
+  "forge.title_placeholder": "Titre...",
+  "forge.popout": "Ouvrir dans une nouvelle fenêtre",
+  "forge.popout_label": "pop-out",
+  "dashboard.views": "{count} vue(s)",
+  "dashboard.expires": "Expire le {date}",
+  "dashboard.copy_btn": "Copier",
+  "dashboard.open_btn": "Ouvrir",
+  "search.results_for": "{count} résultat(s) pour \"{query}\"",
+  "search.results_filtered": "{count} résultat(s) pour \"{query}\" avec filtres",
+  "search.files_filtered": "{count} fichier(s) avec filtres",
+  "search.query_time": "({time} ms)",
+  "toast.file_created": "Fichier \"{name}\" créé",
+  "toast.dir_created": "Dossier \"{name}\" créé",
+  "toast.dir_deleted": "Dossier supprimé ({count} fichiers)",
+  "toast.path_copied": "Chemin copié : {path}",
+  "toast.create_error": "Erreur lors de la création",
+  "toast.rename_error": "Erreur lors du renommage",
+  "toast.delete_error": "Erreur lors de la suppression",
+  "toast.copy_error": "Erreur lors de la copie",
+  "toast.bookmark_added": "Ajouté aux favoris",
+  "toast.bookmark_removed": "Retiré des favoris",
+  "toast.dir_saved_search": "Répertoire sauvegardé dans les recherches",
+  "toast.no_open_file": "Aucun fichier ouvert",
+  "toast.viewer_error": "Erreur lors du chargement du viewer",
+  "confirm.delete_file_named": "Supprimer le fichier \"{path}\" ?",
+  "confirm.delete_dir_named": "Supprimer \"{path}\" et TOUT son contenu ?",
+  "tree.new_file": "Nouveau fichier",
+  "tree.new_folder": "Nouveau dossier",
+  "tree.vault_home": "Accueil du vault",
+  "toc.title": "SUR CETTE PAGE",
+  "toc.hide_panel": "Masquer le panneau",
+  "toc.no_headings": "Aucun titre dans ce document"
+}
\ No newline at end of file