Home / JSON Formatter & Validator
JSON Formatter & Validator
Paste your JSON and it's tidied into a readable layout. If there's an error, we point out where it is with a line number.
Paste some JSON into the input box to get started.
How to use the JSON formatter
Paste JSON into the left box and press Format, and readable, indented JSON appears on the right. If there's a mistake, we tell you what the error is and where.
Key features
- Beautify (format): choose the indent width (2 or 4 spaces, or tab).
- Validate: instantly checks whether it's valid JSON and shows where any error is.
- Minify: removes extra whitespace and line breaks to make a single line.
- Sort keys: arranges object keys in alphabetical order.
Is my data safe?
Yes. Everything runs in JavaScript inside your browser, and your input is never sent anywhere.
FAQ
Is the JSON formatter free to use?
Yes, it's completely free with no sign-up and no usage limits.
Is the JSON I enter sent anywhere?
No. Everything is processed in your browser, and no data is sent or stored.
Does it show where JSON errors are?
If there's a syntax error, it shows the details along with the line number and position.
Can it minify too?
Yes. The Minify button removes extra whitespace and line breaks to collapse it into one line.