Utility tool

JSON Formatter & Validator

Format, validate, minify, copy, and download JSON directly in your browser.

Browser-based JSON utility

Work with your JSON

Processed locally

Your JSON stays in your browser. It is not uploaded to a server.

0 characters

0 characters

Indentation

Enter JSON or load a file to begin.

Standard JSON does not allow comments or trailing commas. This tool validates JSON but does not automatically repair malformed input.

All processing is local. Related tools: File Size Converter and Word Counter.