diff --git a/package-lock.json b/package-lock.json
index a77256f..15c3881 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -138,6 +138,7 @@
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       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.27.1",
         "@babel/generator": "^7.28.5",
@@ -3681,6 +3682,7 @@
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       "devOptional": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "undici-types": "~6.21.0"
       }
@@ -3691,6 +3693,7 @@
       "integrity": "sha512-k5dJVszUiNr1DSe8Cs+knKR6IrqhqdhpUwzqhkS8ecQTSf3THNtbfIp/umqHMpX2bv+9dkx3fwDv/86LcSfvSg==",
       "devOptional": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "csstype": "^3.0.2"
       }
@@ -3701,6 +3704,7 @@
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       "devOptional": true,
       "license": "MIT",
+      "peer": true,
       "peerDependencies": {
         "@types/react": "^19.2.0"
       }
@@ -3757,6 +3761,7 @@
       "integrity": "sha512-tK3GPFWbirvNgsNKto+UmB/cRtn6TZfyw0D6IKrW55n6Vbs7KJoZtI//kpTKzE/DUmmnAFD8/Ca46s7Obs92/w==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@typescript-eslint/scope-manager": "8.46.4",
         "@typescript-eslint/types": "8.46.4",
@@ -4042,6 +4047,7 @@
       "integrity": "sha512-NZyJarBfL7nWwIq+FDL6Zp/yHEhePMNnnJ0y3qfieCrmNvYct8uvtiV41UvlSe6apAfk0fY1FbWx+NwfmpvtTg==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -4476,6 +4482,7 @@
         }
       ],
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "baseline-browser-mapping": "^2.8.25",
         "caniuse-lite": "^1.0.30001754",
@@ -5328,7 +5335,8 @@
       "version": "8.6.0",
       "resolved": "https://registry.npmjs.org/embla-carousel/-/embla-carousel-8.6.0.tgz",
       "integrity": "sha512-SjWyZBHJPbqxHOzckOfo8lHisEaJWmwd23XppYFYVh10bU66/Pn5tkVkbkCMZVdbUE5eTCI2nD8OyIP4Z+uwkA==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/embla-carousel-react": {
       "version": "8.6.0",
@@ -5373,29 +5381,6 @@
         "node": ">= 0.8"
       }
     },
-    "node_modules/encoding": {
-      "version": "0.1.13",
-      "resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.13.tgz",
-      "integrity": "sha512-ETBauow1T35Y/WZMkio9jiM0Z5xjHHmJ4XmjZOq1l/dXz3lr2sRn87nJy20RupqSh1F2m3HHPSp8ShIPQJrJ3A==",
-      "license": "MIT",
-      "optional": true,
-      "dependencies": {
-        "iconv-lite": "^0.6.2"
-      }
-    },
-    "node_modules/encoding/node_modules/iconv-lite": {
-      "version": "0.6.3",
-      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
-      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
-      "license": "MIT",
-      "optional": true,
-      "dependencies": {
-        "safer-buffer": ">= 2.1.2 < 3.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/end-of-stream": {
       "version": "1.4.5",
       "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.5.tgz",
@@ -5552,6 +5537,7 @@
       "integrity": "sha512-BhHmn2yNOFA9H9JmmIVKJmd288g9hrVRDkdoIgRCRuSySRUHH7r/DI6aAXW9T1WwUuY3DFgrcaqB+deURBLR5g==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.8.0",
         "@eslint-community/regexpp": "^4.12.1",
@@ -7006,6 +6992,7 @@
       "resolved": "https://registry.npmjs.org/jiti/-/jiti-1.21.7.tgz",
       "integrity": "sha512-/imKNG4EbWNrVjoNC/1H5/9GFy+tqjGBHCaSsN+P2RnPqjsLmv6UD3Ej+Kj8nBWaRAwyk7kK5ZUc+OEatnTR3A==",
       "license": "MIT",
+      "peer": true,
       "bin": {
         "jiti": "bin/jiti.js"
       }
@@ -8239,6 +8226,7 @@
       "resolved": "https://registry.npmjs.org/pg/-/pg-8.16.3.tgz",
       "integrity": "sha512-enxc1h0jA/aq5oSDMvqyW3q89ra6XIIDZgCX9vkMrnz5DFTw/Ny3Li2lFQ+pt3L6MCgm/5o2o8HW9hiJji+xvw==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "pg-connection-string": "^2.9.1",
         "pg-pool": "^3.10.1",
@@ -8378,6 +8366,7 @@
         }
       ],
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "nanoid": "^3.3.11",
         "picocolors": "^1.1.1",
@@ -8768,6 +8757,7 @@
       "resolved": "https://registry.npmjs.org/react/-/react-19.2.0.tgz",
       "integrity": "sha512-tmbWg6W31tQLeB5cdIBOicJDJRR2KzXsV7uSK9iNfLWQ5bIZfxuPEHp7M8wiHyHnn0DD1i7w3Zmin0FtkrwoCQ==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -8808,6 +8798,7 @@
       "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-19.2.0.tgz",
       "integrity": "sha512-UlbRu4cAiGaIewkPyiRGJk0imDN2T3JjieT6spoL2UeSf5od4n5LB/mQ4ejmxhCFT1tYe8IvaFulzynWovsEFQ==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "scheduler": "^0.27.0"
       },
@@ -9860,6 +9851,7 @@
       "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-3.4.18.tgz",
       "integrity": "sha512-6A2rnmW5xZMdw11LYjhcI5846rt9pbLSabY5XPxo+XWdxwZaFEn47Go4NzFiHu9sNNmr/kXivP1vStfvMaK1GQ==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@alloc/quick-lru": "^5.2.0",
         "arg": "^5.0.2",
@@ -10064,6 +10056,7 @@
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz",
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -10192,6 +10185,7 @@
       "integrity": "sha512-84MVSjMEHP+FQRPy3pX9sTVV/INIex71s9TL2Gm5FG/WG1SqXeKyZ0k7/blY/4FdOzI12CBy1vGc4og/eus0fw==",
       "dev": true,
       "license": "Apache-2.0",
+      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -10439,6 +10433,7 @@
       "resolved": "https://registry.npmjs.org/vite/-/vite-6.4.1.tgz",
       "integrity": "sha512-+Oxm7q9hDoLMyJOYfUYBuHQo+dkAloi33apOPP56pzj+vsdJDzr+j1NISE5pyaAuKL4A3UD34qd0lx5+kfKp2g==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "esbuild": "^0.25.0",
         "fdir": "^6.4.4",
@@ -10530,6 +10525,7 @@
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz",
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=12"
       },
diff --git a/routes/todos.routes.js b/routes/todos.routes.js
index 501ecb5..7b86d8e 100644
--- a/routes/todos.routes.js
+++ b/routes/todos.routes.js
@@ -19,7 +19,7 @@ router.get('/', async (req, res) => {
     // Essayer d'abord avec le champ priority (nouvelle version)
     try {
       const todos = await getAll(`
-        SELECT id, text, completed, priority, created_at
+        SELECT id, text, completed, priority, in_progress, created_at
         FROM global_todos
         WHERE user_id = $1
         ORDER BY priority DESC, created_at DESC
@@ -37,8 +37,8 @@ router.get('/', async (req, res) => {
         ORDER BY created_at DESC
       `, [req.user.id]);
 
-      // Ajouter priority=false par défaut pour compatibilité frontend
-      const todosWithPriority = todos.map(t => ({ ...t, priority: false }));
+      // Ajouter priority=false et in_progress=false par défaut pour compatibilité frontend
+      const todosWithPriority = todos.map(t => ({ ...t, priority: false, in_progress: false }));
       res.json(todosWithPriority);
     }
   } catch (error) {
@@ -77,6 +77,7 @@ router.post('/',
         text,
         completed: false,
         priority: false,
+        in_progress: false,
         created_at: new Date().toISOString()
       });
     } catch (error) {
@@ -94,7 +95,8 @@ router.put('/:id',
   [
     body('text').optional().trim().notEmpty(),
     body('completed').optional().isBoolean(),
-    body('priority').optional().isBoolean()
+    body('priority').optional().isBoolean(),
+    body('in_progress').optional().isBoolean()
   ],
   async (req, res) => {
     try {
@@ -103,7 +105,7 @@ router.put('/:id',
         return res.status(400).json({ error: 'Données invalides', details: errors.array() });
       }
 
-      const { text, completed, priority } = req.body;
+      const { text, completed, priority, in_progress } = req.body;
 
       // Vérifier que le todo appartient à l'utilisateur
       const todo = await getOne('SELECT id FROM global_todos WHERE id = $1 AND user_id = $2', [req.params.id, req.user.id]);
@@ -130,6 +132,11 @@ router.put('/:id',
         updates.push(`priority = $${paramCount}`);
         params.push(priority ? 1 : 0);
       }
+      if (in_progress !== undefined) {
+        paramCount++;
+        updates.push(`in_progress = $${paramCount}`);
+        params.push(in_progress ? 1 : 0);
+      }
 
       if (updates.length > 0) {
         paramCount++;
@@ -205,6 +212,42 @@ router.patch('/:id/priority', async (req, res) => {
   }
 });
 
+/**
+ * PATCH /api/todos/:id/in-progress
+ * Basculer l'état in_progress d'un todo
+ */
+router.patch('/:id/in-progress', async (req, res) => {
+  try {
+    // Vérifier que le todo appartient à l'utilisateur
+    try {
+      const todo = await getOne('SELECT id, in_progress FROM global_todos WHERE id = $1 AND user_id = $2', [req.params.id, req.user.id]);
+      if (!todo) {
+        return res.status(404).json({ error: 'Todo non trouvé' });
+      }
+
+      const newInProgress = todo.in_progress ? 0 : 1;
+      await runQuery('UPDATE global_todos SET in_progress = $1 WHERE id = $2', [newInProgress, req.params.id]);
+
+      logger.info(`Todo global ${newInProgress ? 'marqué en cours' : 'démarqué en cours'} (ID: ${req.params.id}) par ${req.user.username}`);
+
+      res.json({ message: 'Statut en cours modifié avec succès', in_progress: newInProgress === 1 });
+    } catch (inProgressError) {
+      // Si le champ in_progress n'existe pas encore
+      if (inProgressError.message && inProgressError.message.includes('in_progress')) {
+        logger.warn('Tentative d\'utilisation de la fonctionnalité in_progress sans migration');
+        return res.status(400).json({
+          error: 'Fonctionnalité in_progress non disponible',
+          message: 'Veuillez exécuter la migration: node scripts/migrate_003.js'
+        });
+      }
+      throw inProgressError;
+    }
+  } catch (error) {
+    logger.error('Erreur lors du toggle du statut en cours:', error);
+    res.status(500).json({ error: 'Erreur serveur' });
+  }
+});
+
 /**
  * DELETE /api/todos/:id
  * Supprimer un todo global
diff --git a/scripts/migrate_003.js b/scripts/migrate_003.js
new file mode 100644
index 0000000..401f204
--- /dev/null
+++ b/scripts/migrate_003.js
@@ -0,0 +1,32 @@
+const { pool } = require('../config/database');
+const logger = require('../config/logger');
+
+async function migrate() {
+    const client = await pool.connect();
+    try {
+        logger.info('Starting migration: Add in_progress column to global_todos');
+
+        // Check if column exists
+        const checkRes = await client.query(`
+      SELECT column_name 
+      FROM information_schema.columns 
+      WHERE table_name='global_todos' AND column_name='in_progress'
+    `);
+
+        if (checkRes.rows.length === 0) {
+            await client.query('ALTER TABLE global_todos ADD COLUMN in_progress INTEGER DEFAULT 0');
+            logger.info('✓ Column in_progress added successfully');
+        } else {
+            logger.info('⚠ Column in_progress already exists');
+        }
+
+    } catch (error) {
+        logger.error('Migration failed:', error);
+        process.exit(1);
+    } finally {
+        client.release();
+        await pool.end();
+    }
+}
+
+migrate();
diff --git a/src/pages/Index.tsx b/src/pages/Index.tsx
index 24ce9ff..62aa13e 100644
--- a/src/pages/Index.tsx
+++ b/src/pages/Index.tsx
@@ -572,6 +572,15 @@ const Index = () => {
     }
   };
 
+  const handleToggleTodoInProgress = async (todoId: number) => {
+    try {
+      await TodosService.toggleInProgress(todoId);
+      setTodos(todos.map(t => t.id === todoId ? { ...t, in_progress: !t.in_progress } : t));
+    } catch (error) {
+      showError("Erreur lors de la mise à jour du statut");
+    }
+  };
+
   const confirmAddRssFeed = async (url: string) => {
     try {
       const newFeed = await RssService.addFeed(url);
@@ -1617,7 +1626,15 @@ const Index = () => {
                             <span className="text-sm flex-1 leading-snug">
                               {todo.text}
                             </span>
-                            <Activity className="h-3.5 w-3.5 text-muted-foreground mr-1" title="En cours" />
+                            <Button
+                              variant="ghost"
+                              size="icon"
+                              className={`h-7 w-7 ${todo.in_progress ? 'opacity-100 text-orange-500' : 'opacity-0 group-hover:opacity-100 text-muted-foreground'} transition-all`}
+                              onClick={() => todo.id && handleToggleTodoInProgress(todo.id)}
+                              title={todo.in_progress ? "Marquer comme non commencé" : "Marquer comme en cours"}
+                            >
+                              <Activity className="h-3.5 w-3.5" />
+                            </Button>
                             <Button
                               variant="ghost"
                               size="icon"
diff --git a/src/services/TodosService.ts b/src/services/TodosService.ts
index 580d296..7509f55 100644
--- a/src/services/TodosService.ts
+++ b/src/services/TodosService.ts
@@ -5,6 +5,7 @@ export interface Todo {
   text: string;
   completed: boolean;
   priority?: boolean;
+  in_progress?: boolean;
   due_date?: string;
   created_at?: string;
 }
@@ -81,6 +82,16 @@ class TodosService {
       throw error;
     }
   }
+
+  async toggleInProgress(todoId: number): Promise<boolean> {
+    try {
+      await axios.patch(`${this.baseURL}/${todoId}/in-progress`, {}, this.getAuthHeader());
+      return true;
+    } catch (error) {
+      console.error('Error toggling in progress status:', error);
+      throw error;
+    }
+  }
 }
 
 export default new TodosService();