b2KIT

WebSocket Tester

Connect to a WebSocket endpoint, send and receive messages, and see a live message log with timestamps.

Disconnected
Message Log
No messages yet. Connect to a WebSocket server and start sending messages.

Connects directly from your browser. Try wss://echo.websocket.org for an echo server that returns your messages back. Use ws:// for unencrypted connections (localhost only in most browsers). All communication happens locally in your browser session.

How to Use WebSocket Tester

  1. 1

    Enter WebSocket URL

    Type the ws:// or wss:// endpoint URL to connect to.

  2. 2

    Connect and send

    Click connect, then type and send messages to the server.

  3. 3

    View the log

    See all sent and received messages in the activity log.

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