diff --git a/backend/src/routes/players.js b/backend/src/routes/players.js
index 44b7e60..0be5868 100644
--- a/backend/src/routes/players.js
+++ b/backend/src/routes/players.js
@@ -46,6 +46,21 @@ router.get('/', isAuthenticated, async (req, res) => {
       console.warn('usercache.json non trouvé:', usercacheFile);
     }
 
+    // Récupérer les OP depuis ops.txt
+    let ops = [];
+    const opsFile = path.join(SERVER_DIR, 'ops.txt');
+    if (await fs.pathExists(opsFile)) {
+      try {
+        const opsContent = await fs.readFile(opsFile, 'utf8');
+        ops = opsContent
+          .split('\n')
+          .map(line => line.trim())
+          .filter(line => line.length > 0);
+      } catch (e) {
+        console.error('Erreur lecture ops.txt:', e);
+      }
+    }
+
     // Récupérer les stats de dernière connexion
     const statsDir = path.join(SERVER_DIR, 'world', 'stats');
     let statsByUuid = {};
@@ -71,9 +86,11 @@ router.get('/', isAuthenticated, async (req, res) => {
 
     const players = playerFiles.map(file => {
       const uuid = file.replace('.dat', '');
+      const playerName = usercache[uuid] || 'Inconnu';
       return {
         uuid,
-        name: usercache[uuid] || 'Inconnu',
+        name: playerName,
+        isOp: ops.includes(playerName),
         lastPlayed: new Date() // TODO: Extraire du fichier .dat si possible
       };
     });
diff --git a/frontend/public/js/app.js b/frontend/public/js/app.js
index f282ba6..6e057b2 100644
--- a/frontend/public/js/app.js
+++ b/frontend/public/js/app.js
@@ -891,12 +891,13 @@ function getPlayersHTML() {
                 <thead>
                     <tr>
                         <th>Nom</th>
+                        <th>OP</th>
                         <th>UUID</th>
                         <th>Dernière Connexion</th>
                     </tr>
                 </thead>
                 <tbody id="playersTable">
-                    <tr><td colspan="3" style="text-align: center;">Chargement...</td></tr>
+                    <tr><td colspan="4" style="text-align: center;">Chargement...</td></tr>
                 </tbody>
             </table>
         </div>
@@ -924,12 +925,13 @@ async function loadPlayersData() {
             table.innerHTML = data.players.map(p => `
                 <tr>
                     <td>${p.name}</td>
+                    <td style="text-align: center;">${p.isOp ? '✅ OP' : '❌'}</td>
                     <td><code style="font-size: 11px;">${p.uuid}</code></td>
                     <td>${new Date(p.lastPlayed).toLocaleString()}</td>
                 </tr>
             `).join('');
         } else {
-            table.innerHTML = '<tr><td colspan="3" style="text-align: center;">Aucun joueur</td></tr>';
+            table.innerHTML = '<tr><td colspan="4" style="text-align: center;">Aucun joueur</td></tr>';
         }
     } catch (e) {
         console.error('Erreur joueurs:', e);
@@ -1018,15 +1020,46 @@ window.loadOnlinePlayers = async function() {
             `;
             
             if (onlineCount > 0 && playerNames.length > 0) {
-                listDiv.innerHTML = `
-                    <div style="display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin-top: 15px;">
-                        ${playerNames.map(name => `
-                            <div style="padding: 12px; background: white; border: 2px solid #4CAF50; border-radius: 8px; text-align: center;">
-                                <span style="font-weight: bold; color: #333;">🎮 ${name}</span>
-                            </div>
-                        `).join('')}
-                    </div>
-                `;
+                // Charger les infos des joueurs pour voir qui est OP
+                try {
+                    const playersResponse = await fetch(`${API_URL}/players`, {
+                        credentials: 'include'
+                    });
+                    let playersData = await playersResponse.json();
+                    let playersByName = {};
+                    if (playersData.players) {
+                        playersByName = playersData.players.reduce((acc, p) => {
+                            acc[p.name] = p;
+                            return acc;
+                        }, {});
+                    }
+                    
+                    listDiv.innerHTML = `
+                        <div style="display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin-top: 15px;">
+                            ${playerNames.map(name => {
+                                const playerInfo = playersByName[name];
+                                const isOp = playerInfo && playerInfo.isOp;
+                                return `
+                                    <div style="padding: 12px; background: white; border: 2px solid ${isOp ? '#FFD700' : '#4CAF50'}; border-radius: 8px; text-align: center;">
+                                        <span style="font-weight: bold; color: #333;">🎮 ${name}</span>
+                                        ${isOp ? '<div style="margin-top: 5px; font-size: 12px; color: #FFD700; font-weight: bold;">👑 OP</div>' : ''}
+                                    </div>
+                                `;
+                            }).join('')}
+                        </div>
+                    `;
+                } catch (e) {
+                    console.error('Erreur chargement infos joueurs:', e);
+                    listDiv.innerHTML = `
+                        <div style="display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin-top: 15px;">
+                            ${playerNames.map(name => `
+                                <div style="padding: 12px; background: white; border: 2px solid #4CAF50; border-radius: 8px; text-align: center;">
+                                    <span style="font-weight: bold; color: #333;">🎮 ${name}</span>
+                                </div>
+                            `).join('')}
+                        </div>
+                    `;
+                }
             } else {
                 listDiv.innerHTML = '';
             }