diff --git a/frontend/editor-poc.html b/frontend/editor-poc.html
index 3295000..18d7e53 100644
--- a/frontend/editor-poc.html
+++ b/frontend/editor-poc.html
@@ -1822,19 +1822,24 @@ body { font-family: var(--sans); background: var(--bg); color: var(--text); heig
     var lastChar = fullText.slice(-1);
     var midWord = /[a-zA-Z0-9\u00C0-\u024F]$/.test(lastChar);
 
+    // Get user's preferred language
+    var lang = 'fr';
+    try { lang = localStorage.getItem('obsigate-lang') || 'fr'; } catch(e) {}
+    var langNames = { fr: 'French', en: 'English', es: 'Spanish', de: 'German' };
+    var langName = langNames[lang] || 'French';
+
     var prompt, inputText;
     if (midWord) {
       var wordMatch = fullText.match(/([\w\u00C0-\u024F]+)$/);
       var partialWord = wordMatch ? wordMatch[1] : fullText;
       inputText = partialWord;
-      // Provide surrounding context so the model can guess the word
       var context = fullText.slice(0, -partialWord.length).trim();
-      prompt = 'Complete this French word. The word is: "' + partialWord +
+      prompt = 'Complete this ' + langName + ' word. The word is: "' + partialWord +
         '". Context: "' + (context || '(start of line)') +
-        '". Return ONLY the remaining letters of the word. Example: if word is "famil" return "ial" for "familial". Do NOT add spaces.';
+        '". Return ONLY the remaining letters. Do NOT add spaces. Example: "famil" → "ial" for "familial".';
     } else {
       inputText = fullText;
-      prompt = 'Continue this text. Return ONLY the new text (do NOT repeat what is already written):\n' + fullText;
+      prompt = 'Continue this ' + langName + ' text naturally. Return ONLY the new text (do NOT repeat):\n' + fullText;
     }
 
     fetch('/api/ai/inline-complete', {
diff --git a/frontend/index.html b/frontend/index.html
index 64a7792..6b4d7fe 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -1348,6 +1348,11 @@
                                     >🤖 IA</a
                                 >
                             </li>
+                            <li>
+                                <a href="#cfg-profile" class="help-nav-link"
+                                    >👤 Profil</a
+                                >
+                            </li>
                             <li>
                                 <a href="#cfg-about" class="help-nav-link"
                                     >📦 A propos</a
@@ -1962,6 +1967,36 @@
                                 </div>
                             </section>
 
+                            <!-- Profil -->
+                            <section
+                                class="config-section help-section"
+                                id="cfg-profile"
+                            >
+                                <h2>👤 Profil utilisateur</h2>
+                                <p class="config-description">
+                                    Preferences personnelles pour personnaliser
+                                    l'experience ObsiGate.
+                                </p>
+                                <div class="profile-form" id="profile-form">
+                                    <div class="profile-field">
+                                        <label for="profile-lang">Langue preferee</label>
+                                        <select id="profile-lang" class="config-select">
+                                            <option value="fr">Francais</option>
+                                            <option value="en">English</option>
+                                            <option value="es">Espanol</option>
+                                            <option value="de">Deutsch</option>
+                                        </select>
+                                        <span class="profile-hint">Utilisee par l'autocompletion et le ghost text.</span>
+                                    </div>
+                                    <div class="profile-field">
+                                        <label for="profile-name">Nom d'affichage</label>
+                                        <input type="text" id="profile-name" class="config-input" placeholder="Votre nom" maxlength="60">
+                                    </div>
+                                    <button class="config-save-btn" id="profile-save">Enregistrer</button>
+                                    <span class="profile-saved" id="profile-saved" style="display:none">✓ Sauvegarde</span>
+                                </div>
+                            </section>
+
                             <!-- À propos -->
                             <section
                                 class="config-section help-section"
diff --git a/frontend/js/config.js b/frontend/js/config.js
index f8122a1..dca80df 100644
--- a/frontend/js/config.js
+++ b/frontend/js/config.js
@@ -644,6 +644,9 @@ function initConfigModal() {
 
   // Init theme picker
   initThemePicker();
+
+  // Init profile
+  initProfile();
 }
 
 function closeConfigModal() {
@@ -1387,6 +1390,7 @@ export {
   loadHiddenFilesSettings as initHiddenFilesConfig,
   initThemePicker,
   initAboutModal,
+  initProfile,
   switchSidebarTab,
 };
 
@@ -1508,3 +1512,28 @@ function initAboutModal() {
     if (jokeEl) jokeEl.textContent = '« ' + jokes[Math.floor(Math.random() * jokes.length)] + ' »';
   }
 }
+
+// ── Profile ──────────────────────────────────────────────────────────
+function initProfile() {
+  var langSel = document.getElementById('profile-lang');
+  var nameInp = document.getElementById('profile-name');
+  var saveBtn = document.getElementById('profile-save');
+  var savedEl = document.getElementById('profile-saved');
+  if (!langSel || !saveBtn) return;
+
+  // Load saved profile
+  try {
+    var lang = localStorage.getItem('obsigate-lang') || 'fr';
+    var name = localStorage.getItem('obsigate-name') || '';
+    if (langSel) langSel.value = lang;
+    if (nameInp) nameInp.value = name;
+  } catch(e) {}
+
+  saveBtn.addEventListener('click', function() {
+    try {
+      localStorage.setItem('obsigate-lang', langSel.value);
+      if (nameInp) localStorage.setItem('obsigate-name', nameInp.value.trim());
+      if (savedEl) { savedEl.style.display = 'inline'; setTimeout(function() { savedEl.style.display = 'none'; }, 2000); }
+    } catch(e) {}
+  });
+}
diff --git a/frontend/style.css b/frontend/style.css
index 9161cc7..89610f0 100644
--- a/frontend/style.css
+++ b/frontend/style.css
@@ -2215,6 +2215,19 @@ select {
   background: var(--accent);
   color: #fff;
 }
+/* Profile section */
+.profile-form { max-width: 420px; }
+.profile-field { margin-bottom: 14px; }
+.profile-field label { display: block; font-size: 0.75rem; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
+.profile-field .config-input,
+.profile-field .config-select {
+  width: 100%; padding: 6px 10px; font-size: 0.8rem;
+  background: var(--bg-primary); color: var(--text-primary);
+  border: 1px solid var(--border); border-radius: 6px;
+  font-family: inherit;
+}
+.profile-hint { display: block; font-size: 0.65rem; color: var(--text-muted); margin-top: 4px; }
+.profile-saved { font-size: 0.7rem; color: var(--accent-green); margin-left: 10px; }
 .saved-search-vault {
   font-size: 0.65rem;
   color: var(--text-muted);