web control center
based on the ROS Control Center: https://github.com/pantor/ros-control-center
The control center runs on any computer (in particular without ROS...) in the same network. Open the Web Control Center at the URL of the server (for example: http://192.168.1.178:8888). In the settings tab, you need to enter the IP address and port (9090 by default) of your robot. In the Image Preview Port you need to enter the port of the web_video_server, which should be 8080 by default. Open the Control tab and reload.
When the server is not the same machine as the robot, then make sure the same ROS message types are installed on both machines.