{ }JSON Formatter
Beautify, minify and validate JSON.
About the JSON Formatter
Format, beautify, minify and validate JSON online. Paste your JSON to pretty-print it with proper indentation or minify it to save space. Errors are highlighted so you can fix invalid JSON fast. Everything runs locally in your browser.
How to use the JSON Formatter
- 1Type or paste your text into the JSON Formatter box above.
- 2Choose the action or option you want to apply.
- 3Review the output and copy it with a single click.
- 4Your text never leaves your device — it's processed locally.
Why use this tool?
Private by design
The JSON Formatter runs entirely in your browser — nothing you enter is uploaded to a server.
Free, no signup
Use it as much as you like. There's no account, no paywall and no watermark.
Fast & instant
Results appear the moment you type or click — no waiting, no page reloads.
Works anywhere
Any device or browser, even offline once the page has loaded.
Frequently asked questions
Does it validate JSON?＋
Yes. If your JSON is invalid, the exact error is shown so you can fix it quickly.
Can it minify JSON too?＋
Yes — you can beautify (pretty-print) or minify JSON with a single click.
Is my JSON data safe?＋
Yes. It is processed locally in your browser and never uploaded.