diff --git a/api/controllers/console/app/online_user.py b/api/controllers/console/app/online_user.py
index b0b4dc5013..afb77e1ac6 100644
--- a/api/controllers/console/app/online_user.py
+++ b/api/controllers/console/app/online_user.py
@@ -2,6 +2,7 @@ import json
 
 from flask import request
 from flask_restful import Resource, marshal_with, reqparse
+from flask_socketio import join_room
 
 from controllers.console import api
 from controllers.console.wraps import account_initialization_required, setup_required
@@ -36,8 +37,11 @@ def handle_user_connect(data):
     }
 
     redis_client.hset(f"workflow_online_users:{workflow_id}", current_user.id, json.dumps(user_info))
-
     redis_client.set(f"ws_sid_map:{sid}", json.dumps({"workflow_id": workflow_id, "user_id": current_user.id}))
+
+    join_room(workflow_id)
+    broadcast_online_users(workflow_id)
+
     return {"msg": "connected", "user_id": current_user.id, "sid": sid}
 
 
@@ -55,6 +59,25 @@ def handle_disconnect():
         redis_client.hdel(f"workflow_online_users:{workflow_id}", user_id)
         redis_client.delete(f"ws_sid_map:{sid}")
 
+        broadcast_online_users(workflow_id)
+
+def broadcast_online_users(workflow_id):
+    """
+    broadcast online users to the workflow room
+    """
+    users_json = redis_client.hgetall(f"workflow_online_users:{workflow_id}")
+    users = []
+    for _, user_info_json in users_json.items():
+        try:
+            users.append(json.loads(user_info_json))
+        except Exception:
+            continue
+    ext_socketio.emit(
+        "online_users",
+        {"workflow_id": workflow_id, "users": users},
+        room=workflow_id
+    )
+
 
 class OnlineUserApi(Resource):
     @setup_required
diff --git a/web/app/components/workflow-app/components/workflow-main.tsx b/web/app/components/workflow-app/components/workflow-main.tsx
index 162062f293..30ec41ef35 100644
--- a/web/app/components/workflow-app/components/workflow-main.tsx
+++ b/web/app/components/workflow-app/components/workflow-main.tsx
@@ -1,5 +1,6 @@
 import {
   useCallback,
+  useEffect,
   useMemo,
 } from 'react'
 import { useFeaturesStore } from '@/app/components/base/features/hooks'
@@ -17,6 +18,8 @@ import {
 } from '../hooks'
 import { useStore, useWorkflowStore } from '@/app/components/workflow/store'
 import { useCollaborativeCursors } from '../hooks'
+import { connectOnlineUserWebSocket } from '@/service/demo/online-user'
+import type { OnlineUser } from '@/service/demo/online-user'
 
 type WorkflowMainProps = Pick<WorkflowProps, 'nodes' | 'edges' | 'viewport'>
 const WorkflowMain = ({
@@ -26,6 +29,7 @@ const WorkflowMain = ({
 }: WorkflowMainProps) => {
   const featuresStore = useFeaturesStore()
   const workflowStore = useWorkflowStore()
+  const appId = useStore(s => s.appId)
 
   const handleWorkflowDataUpdate = useCallback((payload: any) => {
     const {
@@ -65,10 +69,36 @@ const WorkflowMain = ({
     handleWorkflowStartRunInChatflow,
     handleWorkflowStartRunInWorkflow,
   } = useWorkflowStartRun()
-  const appId = useStore(s => s.appId)
 
   const { cursors, myUserId } = useCollaborativeCursors(appId)
 
+  // Add online users logging
+  useEffect(() => {
+    if (!appId) return
+
+    // Connect to WebSocket for online users
+    const socket = connectOnlineUserWebSocket(appId)
+
+    // Handle online users update
+    const handleOnlineUsersUpdate = (data: { users: OnlineUser[] }) => {
+      data.users.forEach((user) => {
+        console.log(`👤 User: ${user.username} (ID: ${user.user_id})`)
+      })
+    }
+
+    // Add event listeners
+    socket.on('online_users', handleOnlineUsersUpdate)
+
+    // Log initial connection
+    console.log('🔌 Connecting to online users WebSocket for app:', appId)
+
+    // Cleanup function
+    return () => {
+      console.log(' Cleaning up online users WebSocket listeners')
+      socket.off('online_users', handleOnlineUsersUpdate)
+    }
+  }, [appId])
+
   const { fetchInspectVars } = useSetWorkflowVarsWithValue({
     flowId: appId,
     ...useConfigsMap(),
diff --git a/web/service/demo/online-user.ts b/web/service/demo/online-user.ts
index 889a78a9ef..50ff7232f5 100644
--- a/web/service/demo/online-user.ts
+++ b/web/service/demo/online-user.ts
@@ -1,15 +1,11 @@
 'use client'
+import { get } from '../base'
 import type { Socket } from 'socket.io-client'
 import { io } from 'socket.io-client'
 
 let socket: Socket | null = null
 let lastAppId: string | null = null
 
-/**
- * Connect to the online user websocket server.
- * @param appId The app id to join a specific room or namespace.
- * @returns The socket instance.
- */
 export function connectOnlineUserWebSocket(appId: string): Socket {
   if (socket && lastAppId === appId)
     return socket
@@ -58,3 +54,29 @@ export function disconnectOnlineUserWebSocket() {
     socket = null
   }
 }
+
+export const getOnlineUsersSocket = (): Socket | null => {
+  return socket
+}
+
+export type OnlineUser = {
+  user_id: string
+  username: string
+  avatar: string
+  sid: string
+}
+
+export type WorkflowOnlineUsers = {
+  workflow_id: string
+  users: OnlineUser[]
+}
+
+export type OnlineUserListResponse = {
+  data: WorkflowOnlineUsers[]
+}
+
+export const fetchAppsOnlineUsers = (appIds: string[]) => {
+  return get<OnlineUserListResponse>('/online-users', {
+    params: { app_ids: appIds.join(',') },
+  })
+}