JSON Formatter & Beautifier

Format, validate and minify JSON instantly in your browser. Paste your JSON and get a clean, readable output with proper indentation.

No data leaves your browser
Indent
JSON Input
JSON Validator
JSON Input
JSON Minifier
JSON Input

Need JSON compare, tree view, or JSON→YAML? Open the full JSON Suite →

What is a JSON formatter?

A JSON formatter (also called a JSON beautifier or pretty printer) takes compact or unindented JSON and adds whitespace and line breaks to make it human-readable.

Is this JSON formatter free?

Yes, completely free. No signup or account required.

Is my data safe?

All formatting runs entirely in your browser. No data is uploaded to any server.

What is JSON minification?

JSON minification removes unnecessary whitespace and line breaks to produce the most compact valid JSON string, reducing file size for transmission.