diff --git a/src/routes/clientErrors.js b/src/routes/clientErrors.js
new file mode 100644
index 0000000..c60c822
--- /dev/null
+++ b/src/routes/clientErrors.js
@@ -0,0 +1,94 @@
+const crypto = require('node:crypto');
+const { pool, requireAuth, requireAdmin } = require('./context');
+
+const MAX_ERRORS_PER_PAGE = 50;
+const ERROR_RETENTION_HOURS = 72;
+
+async function initTable(client) {
+  await client.query(`
+    CREATE TABLE IF NOT EXISTS client_errors (
+      id SERIAL PRIMARY KEY,
+      message TEXT NOT NULL,
+      stack TEXT,
+      source VARCHAR(32),
+      url TEXT,
+      user_agent TEXT,
+      session_id TEXT,
+      user_id INTEGER,
+      count INTEGER DEFAULT 1,
+      first_seen TIMESTAMP DEFAULT NOW(),
+      last_seen TIMESTAMP DEFAULT NOW()
+    );
+    CREATE INDEX IF NOT EXISTS idx_client_errors_last_seen ON client_errors(last_seen DESC);
+    CREATE INDEX IF NOT EXISTS idx_client_errors_user ON client_errors(user_id);
+  `);
+}
+
+async function storeError(client, error) {
+  const normalizedMessage = error.message.slice(0, 1000);
+  const { rows } = await client.query(
+    `SELECT id, count FROM client_errors WHERE message = $1 AND url = $2 AND source = $3 AND last_seen > NOW() - INTERVAL '10 minutes'`,
+    [normalizedMessage, error.url || '', error.source || 'manual']
+  );
+  if (rows.length > 0) {
+    await client.query(
+      `UPDATE client_errors SET count = count + 1, last_seen = NOW(), stack = COALESCE($1, stack) WHERE id = $2`,
+      [error.stack, rows[0].id]
+    );
+  } else {
+    await client.query(
+      `INSERT INTO client_errors (message, stack, source, url, user_agent, session_id, user_id) VALUES ($1,$2,$3,$4,$5,$6,$7)`,
+      [normalizedMessage, error.stack, error.source, error.url, error.userAgent, error.sessionId, error.userId || null]
+    );
+  }
+}
+
+module.exports = function mountClientErrorRoutes(router) {
+  router.post('/client-errors', requireAuth, async (req, res) => {
+    try {
+      const { errors } = req.body;
+      if (!Array.isArray(errors) || !errors.length) return res.json({ ok: true });
+      const { pool: db } = require('./context');
+      const client = await db.connect();
+      try {
+        await initTable(client);
+        for (const err of errors.slice(0, 10)) {
+          await storeError(client, { ...err, userId: req.user?.id });
+        }
+      } finally { client.release(); }
+      res.json({ ok: true });
+    } catch (e) {
+      res.status(500).json({ error: e.message });
+    }
+  });
+
+  router.get('/client-errors', requireAuth, requireAdmin, async (req, res) => {
+    try {
+      const page = Math.max(1, parseInt(req.query.page) || 1);
+      const { pool: db } = require('./context');
+      const client = await db.connect();
+      try {
+        await initTable(client);
+        await client.query(`DELETE FROM client_errors WHERE last_seen < NOW() - INTERVAL '$1 hours'`, [ERROR_RETENTION_HOURS]);
+        const { rows } = await client.query(
+          `SELECT * FROM client_errors ORDER BY last_seen DESC LIMIT $1 OFFSET $2`,
+          [MAX_ERRORS_PER_PAGE, (page - 1) * MAX_ERRORS_PER_PAGE]
+        );
+        const { rows: countRows } = await client.query('SELECT COUNT(*) as total FROM client_errors');
+        res.json({ items: rows, total: parseInt(countRows[0]?.total) || 0, page, pageSize: MAX_ERRORS_PER_PAGE });
+      } finally { client.release(); }
+    } catch (e) {
+      res.status(500).json({ error: e.message });
+    }
+  });
+
+  router.delete('/client-errors', requireAuth, requireAdmin, async (req, res) => {
+    try {
+      const { pool: db } = require('./context');
+      await db.query('DELETE FROM client_errors');
+      res.json({ ok: true });
+    } catch (e) {
+      res.status(500).json({ error: e.message });
+    }
+  });
+};
diff --git a/src/routes/index.js b/src/routes/index.js
index 57bd418..8129e36 100644
--- a/src/routes/index.js
+++ b/src/routes/index.js
@@ -17,7 +17,8 @@ const { registerConversationRoutes } = require('./conversations')
 const { registerReportRoutes } = require('./reports')
 const { registerAssetRoutes } = require('./assets')
 const { registerNotificationRoutes } = require('./notifications')
-const { registerDraftRoutes } = require('./drafts')
+const { registerDraftRoutes } = require('./drafts');
+const mountClientErrorRoutes = require('./clientErrors')
 
 const router = express.Router()