JSON Formatter & Validator
Validate, format, prettify, or minify your JSON data. Check JSON validity and download formatted files instantly.
Drop your JSON file here
or click to browse
Max 50 MB
— OR —
Frequently Asked Questions
Is my JSON data safe?
Yes. All data processing is done securely in memory and never stored on the server.
How does the validation work?
The formatter attempts to parse the JSON and returns specific error messages with line references if parsing fails.
Can I download the formatted JSON?
Yes, once formatting is completed you can download the formatted data as a .json file.