WebSocket Tester
Open a WebSocket connection, send and receive messages with JSON pretty-printing, and debug interfaces live.
Runs in your browser
Real-time
Connection
- State
- —
- Protocol
- —
- Sent
- 0
- Received
- 0
Options
Messages
Disconnected
Connect to start exchanging messages
About this tool
Open a WebSocket connection, send and receive messages with JSON pretty-printing, and debug interfaces live.
How to use
- Fill in the input box above, or click "Fill sample" to try it instantly
- Adjust the options as needed — results update as you type
- Click "Run" to get the result, then copy or export it in one click
Tips
- Runs entirely in your browser — your data never leaves the device
- Completely free, no registration, no usage limits
- Most tools compute in real time as you type