WebSocket Message Formatter & Debugger

Professional WebSocket debugger for real-time applications. Inspect and format WebSocket messages in real-time, analyze frame performance, replay messages, and export detailed logs. Perfect for developers building chat applications, live notifications, collaborative tools, and real-time dashboards. Features live connection monitoring, message frame analysis, performance metrics, and comprehensive logging capabilities.
Live Connection Monitoring Frame Analysis Message Replay Performance Metrics Export Logs
Quick Examples 
CHAT: {"type":"message","user":"john","text":"Hello"}
TRADING: {"event":"price_update","symbol":"AAPL","price":150.25}
NOTIFICATION: {"action":"notify","title":"New Order","priority":"high"}

WebSocket Message Formatter & Debugger

Professional WebSocket debugger for real-time applications. Inspect and format WebSocket messages in real-time, analyze frame performance, replay messages, and export detailed logs. Perfect for developers building chat applications, live notifications, collaborative tools, and real-time dashboards. Features live connection monitoring, message frame analysis, performance metrics, and comprehensive logging capabilities.

Disconnected Messages: 0 Rate: 0/s Data: 0 B Time: 0s
Connection Settings
Always use wss:// for HTTPS pages. Use ws:// only on HTTP pages.
Optional: Add authentication or custom headers
Ready to connect...
Quick Test Servers
Sample Messages
Send Message
Sent Messages (Last 10)
No messages sent yet
Live Message Feed
Waiting for messages...
Frame Analysis & Performance
0 B
Last Frame Size
0 KB
Total Data Transferred
Unknown
Last Message Type
0 ms
Avg Round-trip
0
Received
0
Sent
Export & Share

Help & Related Tools

Everything you need to know

FAQ Frequently Asked Questions

What can I do with this WebSocket debugger?
This tool lets you connect to any WebSocket server, monitor live messages in real-time, inspect frame data, analyze performance metrics, replay messages, and export detailed logs. Perfect for debugging real-time applications like chat, notifications, and live dashboards.
How do I connect to a WebSocket server?
Enter your WebSocket URL (starting with ws:// or wss://) in the connection field, optionally add headers or authentication tokens, and click Connect. The tool establishes a live connection and automatically displays all incoming and outgoing messages with timestamps and frame analysis.
Can I send custom WebSocket messages?
Absolutely! The tool includes a message editor where you can compose JSON or text messages with syntax highlighting, validate them, and send them directly through your WebSocket connection. You can also replay previous messages or edit and resend them.
Does this work with all WebSocket implementations?
Yes, the tool works with any standard WebSocket server including Socket.IO, ws, and native WebSocket APIs. It supports both plain JSON and text messages. Browser security restrictions may apply for HTTPS pages connecting to WS (non-secure) servers.
Can I export and analyze message logs?
Yes, the tool provides comprehensive export options including JSON format with full message history, timestamps, frame sizes, and performance metrics. You can also filter messages by type, search by content, and generate performance reports.

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