WebSocket Debugger

Connect to WebSocket servers, send and receive text or binary messages, and inspect connection status and close codes.

Server URL

Idle

Messages0

No messages yet. Connect to a server and start sending.

Message

How to Use

What is a WebSocket debugger? A WebSocket debugger connects to a `ws://` or `wss://` server, sends and receives messages, and shows the connection lifecycle. It is useful for testing realtime features during development.

How to use it 1. Enter a WebSocket URL. If you omit the prefix, `ws://` is added for you. 2. Click Connect. 3. Watch the status badge change from Connecting to open. 4. Type a message and press Enter to send it. 5. Inspect incoming and outgoing messages with timestamps.

Reading the message list - `→` marks messages you send. - `←` marks messages you receive. - Text messages appear inline; binary messages are summarized with their byte count.

Tips - Close codes and reasons are shown when the server closes the connection. - Click Clear to empty the message list. - The socket is cleaned up when you leave the page.

Privacy Connections are made directly from your browser to the target server.

WebSocket Debugger — Send & Receive WebSocket Messages Online