format · validate · convert · runs locally

JSON Beautifier

Turn cramped, minified, or one-line JSON into clean, readable, properly indented JSON. Choose 2 spaces, 4 spaces, or tabs, then copy the beautified result. Everything runs locally in your browser — your data is never uploaded.

Frequently asked questions

What does a JSON beautifier do?

It re-indents JSON with consistent line breaks and spacing so deeply nested objects and arrays become easy to read and scan.

Is beautifying the same as changing my data?

No — a beautifier only adds whitespace. The parsed values, keys, and order are identical to the input.

Can I beautify a minified one-line JSON blob?

Yes. Paste any valid single-line JSON and it expands into a fully indented, human-readable document instantly.