JSON Formatter
Format, validate, and minify JSON data.
How to Use
1. Format, validate, and minify JSON data.
2. The calculation runs locally in your browser.
3. Nothing you type is sent to a server.
About Tool
100% Privacy
Runs on the client side. We do not store your data.
Lightning Fast
No server round trips needed. Get results instantly.
Frequently asked questions
Is my JSON uploaded to a server?
No. Formatting, minifying, and validation all run in your browser. The text never leaves the device.
What does validate do?
Validate checks that the text is standard JSON. Beautify indents valid JSON. Minify puts it on one line.
Will comments or trailing commas work?
No. Those are not valid JSON, so the tool reports a parse error instead of guessing.
Is the JSON formatter free?
Yes. There is no account. The tool stays in your browser.