diff --git a/app/routers/api.py b/app/routers/api.py
index c403e45..91ddc69 100644
--- a/app/routers/api.py
+++ b/app/routers/api.py
@@ -195,6 +195,31 @@ async def set_col_mapping(
     return {"status": "ok", "column": column, "label": gitea_label}
 
 
+@router.delete("/col-mapping")
+async def delete_col_mapping(
+    owner: str = Query(...),
+    repo: str = Query(...),
+    column: str = Query(...),
+):
+    """Delete a column-to-label mapping."""
+    with get_conn() as conn:
+        board = conn.execute(
+            "SELECT id FROM boards WHERE project_owner=? AND project_name=?",
+            (owner, repo),
+        ).fetchone()
+        if not board:
+            raise HTTPException(status_code=404, detail="Board not found")
+        board_id = board["id"]
+
+        conn.execute(
+            "DELETE FROM col_mapping WHERE board_id=? AND column_name=?",
+            (board_id, column),
+        )
+        conn.commit()
+
+    return {"status": "ok", "column": column}
+
+
 @router.get("/board-config/{owner}/{repo}")
 async def get_board_config(owner: str, repo: str):
     with get_conn() as conn:
diff --git a/app/templates/board.html b/app/templates/board.html
index cf16f4b..9706b4a 100644
--- a/app/templates/board.html
+++ b/app/templates/board.html
@@ -19,6 +19,7 @@
       <strong>{{ repo }}</strong>
     </div>
     <div class="board-actions">
+      <button class="btn btn-sm" onclick="openBoardConfig('{{ owner }}', '{{ repo }}')" title="Gérer les colonnes">⚙ Colonnes</button>
       <button class="btn btn-sm" onclick="registerWebhook('{{ owner }}', '{{ repo }}')" title="Enregistrer webhook">🔔 Webhook</button>
       <a href="/notes/{{ owner }}/{{ repo }}" class="btn btn-sm">📝 Notes</a>
       <button class="btn btn-sm btn-primary" onclick="openCreateModal('{{ owner }}','{{ repo }}','Backlog')">+ Issue</button>
@@ -82,6 +83,19 @@
   {% endif %}
 </div>
 
+<!-- Board Config Modal (column management) -->
+<div id="board-config-modal" class="modal-overlay" style="display:none">
+  <div class="modal-container">
+    <div class="modal-header">
+      <h3>⚙ Configuration des colonnes</h3>
+      <button onclick="closeBoardConfig()" class="modal-close">&times;</button>
+    </div>
+    <div class="modal-body" id="board-config-content">
+      <div class="loading">Chargement...</div>
+    </div>
+  </div>
+</div>
+
 <!-- Create Issue Modal (reuses card-modal) -->
 <div id="create-modal" class="modal-overlay" style="display:none">
   <div class="modal-container">
@@ -385,5 +399,147 @@
       alert(d.status==='already_registered'?'Webhook déjà enregistré':'Webhook enregistré');
     } catch(e) { alert('Erreur: '+e); }
   }
+
+  // ── Column Configuration ──
+  let _colMappings = {};
+
+  function toggleColConfig(evt, owner, repo, col) {
+    evt.stopPropagation();
+    const safeId = col.replace(/ /g, '_');
+    const panel = document.getElementById('col-config-' + safeId);
+    if (!panel) return;
+    // Close all others
+    document.querySelectorAll('.col-config-panel').forEach(p => { if (p !== panel) p.style.display = 'none'; });
+    const isOpen = panel.style.display === 'block';
+    panel.style.display = isOpen ? 'none' : 'block';
+    if (!isOpen) {
+      // Populate label select
+      const sel = document.getElementById('col-label-' + safeId);
+      if (sel && sel.options.length <= 1) {
+        sel.innerHTML = '<option value="">— Aucun mapping —</option>';
+        ALL_LABELS.forEach(l => {
+          sel.innerHTML += '<option value="'+escHtml(l.name)+'">'+escHtml(l.name)+'</option>';
+        });
+      }
+      // Pre-select current mapping
+      if (_colMappings[col]) sel.value = _colMappings[col];
+    }
+  }
+
+  async function saveColMapping(owner, repo, col) {
+    const safeId = col.replace(/ /g, '_');
+    const sel = document.getElementById('col-label-' + safeId);
+    if (!sel) return;
+    const label = sel.value;
+    if (!label) { alert('Sélectionnez un label'); return; }
+    const params = new URLSearchParams({owner, repo, column: col, gitea_label: label});
+    await fetch('/api/col-mapping?' + params, {method:'POST', headers:{'X-CSRF-Token': getCSRFToken()}});
+    _colMappings[col] = label;
+    document.getElementById('col-config-' + safeId).style.display = 'none';
+    htmx.ajax('GET', `/board/${owner}/${repo}?fragment=1`, {target: '#board-columns', swap: 'outerHTML'});
+  }
+
+  async function deleteColMapping(owner, repo, col) {
+    if (!confirm('Supprimer le mapping pour « ' + col + ' » ?')) return;
+    const safeId = col.replace(/ /g, '_');
+    await fetch(`/api/col-mapping?owner=${owner}&repo=${repo}&column=${encodeURIComponent(col)}`, {method:'DELETE', headers:{'X-CSRF-Token': getCSRFToken()}});
+    delete _colMappings[col];
+    document.getElementById('col-config-' + safeId).style.display = 'none';
+    htmx.ajax('GET', `/board/${owner}/${repo}?fragment=1`, {target: '#board-columns', swap: 'outerHTML'});
+  }
+
+  // ── Board Config (Column Management) ──
+  async function openBoardConfig(owner, repo) {
+    document.getElementById('card-modal').style.display = 'none';
+    document.getElementById('create-modal').style.display = 'none';
+    const modal = document.getElementById('board-config-modal');
+    const content = document.getElementById('board-config-content');
+    modal.style.display = 'flex';
+    content.innerHTML = '<div class="loading">Chargement...</div>';
+
+    const resp = await fetch(`/api/board-config/${owner}/${repo}`);
+    const cfg = await resp.json();
+
+    let h = '<div class="detail-section"><h4>Colonnes actuelles</h4>';
+    h += '<ul class="config-column-list" id="config-column-list">';
+    cfg.columns.forEach((c, i) => {
+      h += '<li class="config-column-row" data-col="'+escHtml(c)+'">';
+      h += '<input type="text" value="'+escHtml(c)+'" class="form-input config-col-name" style="width:200px;margin:0" data-orig="'+escHtml(c)+'">';
+      const mapped = (cfg.col_mappings||[]).find(m => m.column_name === c);
+      const labelName = mapped ? mapped.gitea_label : '';
+      h += '<span class="col-mapping-badge" style="font-size:11px;color:var(--text-dim);margin:0 8px">' + (labelName ? '🏷 '+escHtml(labelName) : '') + '</span>';
+      h += '<button class="btn btn-sm" onclick="renameColumn(\''+owner+'\',\''+repo+'\','+i+',\''+escHtml(c)+'\')">Renommer</button>';
+      h += '<button class="btn btn-sm btn-del" onclick="deleteColumn(\''+owner+'\',\''+repo+'\','+i+',\''+escHtml(c)+'\')">✕</button>';
+      h += '</li>';
+    });
+    h += '</ul></div>';
+
+    h += '<div class="detail-section"><h4>Ajouter une colonne</h4>';
+    h += '<div class="form-row">';
+    h += '<input type="text" id="new-col-name" class="form-input" placeholder="Nom de la colonne..." style="flex:1">';
+    h += '<button class="btn btn-primary btn-sm" onclick="addColumn(\''+owner+'\',\''+repo+'\')">+ Ajouter</button>';
+    h += '</div></div>';
+
+    h += '<div class="detail-actions">';
+    h += '<button onclick="closeBoardConfig()" class="btn btn-sm">Fermer</button>';
+    h += '</div>';
+
+    content.innerHTML = h;
+    window._boardConfig = cfg;
+  }
+
+  function closeBoardConfig() {
+    document.getElementById('board-config-modal').style.display = 'none';
+  }
+
+  async function addColumn(owner, repo) {
+    const inp = document.getElementById('new-col-name');
+    const name = inp.value.trim();
+    if (!name) return;
+    const cfg = window._boardConfig;
+    const cols = [...cfg.columns, name];
+    await fetch(`/api/board-config/${owner}/${repo}?columns=${encodeURIComponent(JSON.stringify(cols))}`, {method:'POST', headers:{'X-CSRF-Token': getCSRFToken()}});
+    closeBoardConfig();
+    htmx.ajax('GET', `/board/${owner}/${repo}?fragment=1`, {target: '#board-columns', swap: 'outerHTML'});
+  }
+
+  async function renameColumn(owner, repo, idx, oldName) {
+    const row = document.querySelector(`.config-column-row[data-col="${oldName.replace(/"/g,'&quot;')}"]`);
+    const inp = row ? row.querySelector('.config-col-name') : null;
+    const newName = inp ? inp.value.trim() : '';
+    if (!newName || newName === oldName) return;
+    const cfg = window._boardConfig;
+    cfg.columns[idx] = newName;
+    await fetch(`/api/board-config/${owner}/${repo}?columns=${encodeURIComponent(JSON.stringify(cfg.columns))}`, {method:'POST', headers:{'X-CSRF-Token': getCSRFToken()}});
+    // Update col_mapping if one existed for old name
+    const oldMapping = (cfg.col_mappings||[]).find(m => m.column_name === oldName);
+    if (oldMapping) {
+      await fetch(`/api/col-mapping?owner=${owner}&repo=${repo}&column=${encodeURIComponent(newName)}&gitea_label=${oldMapping.gitea_label}`, {method:'POST', headers:{'X-CSRF-Token': getCSRFToken()}});
+    }
+    closeBoardConfig();
+    htmx.ajax('GET', `/board/${owner}/${repo}?fragment=1`, {target: '#board-columns', swap: 'outerHTML'});
+  }
+
+  async function deleteColumn(owner, repo, idx, colName) {
+    if (!confirm('Supprimer la colonne « ' + colName + ' » ? Les cartes iront dans la première colonne.')) return;
+    const cfg = window._boardConfig;
+    const cols = cfg.columns.filter((_, i) => i !== idx);
+    await fetch(`/api/board-config/${owner}/${repo}?columns=${encodeURIComponent(JSON.stringify(cols))}`, {method:'POST', headers:{'X-CSRF-Token': getCSRFToken()}});
+    // Delete col_mapping
+    await fetch(`/api/col-mapping?owner=${owner}&repo=${repo}&column=${encodeURIComponent(colName)}`, {method:'DELETE', headers:{'X-CSRF-Token': getCSRFToken()}});
+    closeBoardConfig();
+    htmx.ajax('GET', `/board/${owner}/${repo}?fragment=1`, {target: '#board-columns', swap: 'outerHTML'});
+  }
+
+  // Load col mappings on init
+  (async function() {
+    const owner = '{{ owner }}';
+    const repo = '{{ repo }}';
+    try {
+      const resp = await fetch(`/api/board-config/${owner}/${repo}`);
+      const cfg = await resp.json();
+      (cfg.col_mappings||[]).forEach(m => { _colMappings[m.column_name] = m.gitea_label; });
+    } catch(e) {}
+  })();
 </script>
 {% endblock %}
diff --git a/app/templates/board_fragment.html b/app/templates/board_fragment.html
index d25f755..aeb8df3 100644
--- a/app/templates/board_fragment.html
+++ b/app/templates/board_fragment.html
@@ -3,7 +3,22 @@
   <div class="board-column" data-column="{{ col }}" id="col-{{ loop.index }}">
     <div class="column-header">
       <span class="column-title">{{ col }}</span>
-      <span class="column-count">{{ column_map[col]|length }}</span>
+      <div class="column-header-right">
+        <span class="column-count">{{ column_map[col]|length }}</span>
+        <button class="col-config-btn" onclick="toggleColConfig(event, '{{ owner }}','{{ repo }}','{{ col }}')" title="Configurer la colonne">⚙</button>
+      </div>
+    </div>
+    <div class="col-config-panel" id="col-config-{{ col|replace(' ', '_') }}" style="display:none">
+      <div class="col-config-inner">
+        <label class="form-label">Label Gitea → cette colonne</label>
+        <select class="form-select" id="col-label-{{ col|replace(' ', '_') }}">
+          <option value="">— Aucun mapping —</option>
+        </select>
+        <div class="col-config-actions">
+          <button class="btn btn-sm btn-primary" onclick="saveColMapping('{{ owner }}','{{ repo }}','{{ col }}')">Mapper</button>
+          <button class="btn btn-sm" onclick="deleteColMapping('{{ owner }}','{{ repo }}','{{ col }}')">✕ Supprimer</button>
+        </div>
+      </div>
     </div>
     <div class="column-cards sortable" data-column="{{ col }}" data-owner="{{ owner }}" data-repo="{{ repo }}">
       {% for issue in column_map[col] %}
diff --git a/static/css/app.css b/static/css/app.css
index a59fb7d..5dc18a2 100644
--- a/static/css/app.css
+++ b/static/css/app.css
@@ -119,6 +119,25 @@ body { min-height: 100vh; }
   padding: 10px 12px; display: flex; justify-content: space-between; align-items: center;
   border-bottom: 1px solid var(--border); flex-shrink: 0;
 }
+.column-header-right { display: flex; align-items: center; gap: 6px; }
+.col-config-btn {
+  background: none; border: none; cursor: pointer; font-size: 13px;
+  color: var(--text-dim); padding: 2px 4px; border-radius: 4px;
+  line-height: 1; opacity: 0.5; transition: opacity 0.15s;
+}
+.col-config-btn:hover { opacity: 1; color: var(--accent); }
+.col-config-panel {
+  padding: 8px 12px; border-bottom: 1px solid var(--border);
+  background: var(--bg);
+}
+.col-config-inner { display: flex; flex-direction: column; gap: 6px; }
+.col-config-actions { display: flex; gap: 6px; }
+.config-column-list {
+  list-style: none; display: flex; flex-direction: column; gap: 8px;
+}
+.config-column-row {
+  display: flex; align-items: center; gap: 8px;
+}
 .column-title { font-size: 13px; font-weight: 600; }
 .column-count {
   background: var(--border); border-radius: 10px; padding: 1px 8px;