JSON Formatter Online Free
Format, prettify, and validate JSON data online. Free developer tool.
Files never uploadedInstant results100% freeWorks on mobile
How to Use
- 1Paste your JSON data into the input textarea or type it directly.
- 2Choose your preferred indent size (2 spaces, 4 spaces, or tabs) and click Format.
- 3Copy the formatted output or click Minify to compress it into a single line.
Frequently Asked Questions
What is a JSON formatter?
A JSON formatter is a tool that takes raw or minified JSON data and adds proper indentation and line breaks to make it readable and structured.
Is my JSON data sent to a server?
No. All formatting happens locally in your browser. Your JSON data never leaves your device.
What does 'minify JSON' mean?
Minifying JSON removes all unnecessary whitespace, line breaks, and indentation, producing the smallest possible JSON string.
Does this tool validate JSON?
Yes. If your JSON has syntax errors, the formatter will display an error message indicating the exact issue so you can fix it.
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