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JSON Formatter & Validator

Format, beautify, validate and minify JSON online. Free developer tool, no sign-up.

📚 Read the full guide: How to use JSON Formatter & ValidatorOpen →

How to use JSON Formatter & Validator

  1. 1. Open JSON Formatter & Validator — no install and no sign-up needed.
  2. 2. Add your file or text above. Everything is processed privately, right in your browser.
  3. 3. Get your result and download it instantly — free.

Frequently asked questions

Is JSON Formatter & Validator free?

Yes — 100% free, with no account or sign-up required.

Is my data safe and private?

Your files are processed locally in your browser and are never uploaded to any server.

Do I need to install anything?

No. It works in any modern browser on desktop and mobile.