JSON Formatter & Validator

Format, validate, and beautify JSON data.

100% free
No sign-up
Instant results
Privacy-friendly

JSON input

About the JSON Formatter & Validator

Format, validate, and beautify JSON data. The JSON Formatter & Validator on The 360 Tools is fast, accurate and completely free — no account, no downloads and no usage limits.

Like every tool in our developer collection, the JSON Formatter & Validator runs directly in your browser. Your input is processed locally whenever possible, so results are instant and your data stays private.

How it works

1 Paste your input or adjust the visual controls
2 Output is validated and formatted instantly
3 Copy production-ready code or download the asset

Frequently asked questions

Is the JSON Formatter & Validator free to use?

Yes. The JSON Formatter & Validator is completely free with no sign-up, no hidden charges and no usage limits. All tools on The 360 Tools are free forever.

Is my data safe when using the JSON Formatter & Validator?

Yes. Your input is processed locally in your browser whenever possible and is never stored on our servers or shared with third parties.

Does the JSON Formatter & Validator work on mobile?

Yes. The JSON Formatter & Validator is built mobile-first and works on any modern phone, tablet or desktop browser without installing anything.