FORMAT & VALIDATE

JSON Formatter

Validate, prettify, or minify JSON with adjustable indentation, preserving number literals and key order.

Your input stays in this tab. This tool does not upload your text or files.

IndentationOpen a file

Input

0 characters · 0 UTF-8 bytes

Output

Formatting changes whitespace only. It preserves number literals, key order, and duplicate keys. Maximum input: 5 million characters.

More useful tools