How to use the JSON Formatter & Validator
- Paste your input
- The result updates as you type
- Copy or download the output
About the JSON Formatter & Validator
Beautify messy or minified JSON, validate it with exact line and column errors, minify it for production, or sort keys alphabetically.
Instant resultsEverything updates live as you type. No buttons to wait on.
PrivateYour input never leaves your browser and is never stored.
Free foreverNo signup, no limits and no paywall.
Works offlineInstall the site as an app and use it anywhere.
JSON Formatter & Validator FAQ
Is the JSON Formatter & Validator free?
Yes, it is 100% free with no signup, no watermarks and no usage limits.
Is my data private?
Yes. Everything is calculated in your browser. Nothing you type is sent to or stored on a server.
Does it work on phones and tablets?
Yes. The tool works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux.