Free JSON Formatter

Format, validate and minify JSON online. Beautify JSON with syntax highlighting. Free, no login.

Indent:

INPUT JSON

FORMATTED OUTPUT

What is JSON Formatting?

JSON (JavaScript Object Notation) is a lightweight data format used by APIs and web applications. Raw JSON from APIs is often minified — all on one line with no spaces — making it hard to read. JSON formatting (also called beautifying or pretty printing) adds proper indentation and line breaks to make JSON human-readable.

Format vs Minify JSON

Format / Beautify

Adds indentation and line breaks. Makes JSON easy to read and debug. Use when reviewing API responses or editing configuration files.

Minify

Removes all whitespace. Reduces file size for production use. Use when sending JSON in API requests or embedding in code.

Frequently Asked Questions

How to format JSON online?

Paste your JSON and click Format/Beautify. JSON will be formatted with proper indentation and line breaks.

How to validate JSON?

Paste your JSON and click Validate. Errors are highlighted with line number and error message.

What is JSON minification?

Minification removes all whitespace from JSON, making it smaller for APIs and production code.

Is this JSON formatter free?

Yes, completely free. No login, no account needed.