WebSocket Message Formatter

Beautify and validate JSON messages intended for WebSocket payloads.

What is WebSocket Message Formatter?

A WebSocket message formatter makes JSON or text payloads easier to read while debugging real-time applications. It can help reveal fields, nesting, and formatting problems in message data.

How to use this tool

Paste a message payload, choose the relevant formatting action, then copy or compare the formatted output.

Useful notes

Formatting improves readability but does not validate every protocol rule. Confirm the expected message schema and frame type.

Frequently Asked Questions (FAQ)

Yes. The values you enter are processed locally in your browser.