JavaScript Object Notation (JSON) is a lightweight, widely-used data interchange format that is easy for humans to read and easy for machines to parse.

Why is my JSON invalid?

Common errors include missing quotes around keys, trailing commas after the last array/object element, or unmatched brackets.

Is this tool safe for sensitive data?

Yes. The parsing and formatting are done entirely client-side in your browser using JavaScript. The data is not sent to any server.

JSON Formatter & Minifier

Beautify, validate, or minify JSON data instantly.

What is the JSON Formatter?

The JSON Formatter and Validator helps developers clean up messy, minified JSON data. It parses the data for syntax errors and pretty-prints it with proper indentation.

How to use it

Paste your JSON string into the editor.
Click "Format" to pretty-print with proper tabs and spacing.
Click "Minify" to compress it by removing whitespace.

JSON Formatter & Minifier

What is the JSON Formatter?

How to use it

Frequently Asked Questions