JSON Formatter
Format, validate, and prettify JSON. Runs 100% in your browser.
Examples
— click any card to loadFrequently Asked Questions
- Is JSON Formatter free to use?
- Yes, JSON Formatter is completely free. No account, no signup, and no payment is ever required.
- Does JSON Formatter send my data to a server?
- No. JSON Formatter runs entirely in your browser. Your data is never uploaded to any server — all processing happens locally on your device.
- Can I use JSON Formatter offline?
- Yes. Once the page has loaded, JSON Formatter works without an internet connection. No network requests are made when you use the tool.