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About WebSocket Tester
Developing and debugging real-time applications requires a reliable way to test WebSocket connections. Our free online WebSocket Tester provides a clean interface to connect to any WS/WSS endpoint, send messages, and monitor responses.
How It Works
The tool uses the browser's native WebSocket API to establish a persistent, bidirectional connection to the URL you provide. It logs all connection events, sent messages, and received data in a real-time console.
Common Use Cases
- Testing a newly deployed WebSocket server to ensure it accepts connections
- Debugging real-time chat applications or live data feeds
- Sending custom JSON payloads to a server to test specific event handlers
- Monitoring the latency and stability of a WebSocket connection
Frequently Asked Questions
Yes, you can connect to local endpoints (like ws://localhost:8080) as long as your browser allows it. Note that mixed content policies may prevent connecting to insecure 'ws://' endpoints from a secure 'https://' website.
The standard browser WebSocket API does not allow setting custom HTTP headers during the initial handshake. If your server requires authentication, you may need to pass tokens via the URL query string or as the first message.