JSON Formatter
Format, minify, and validate JSON with syntax checking and instant preview.
JSON Formatter is a free online tool that helps you format, minify, and validate JSON data. Whether you're working with APIs, configuration files, or data exports, this tool provides instant formatting with syntax validation. Copy-paste your JSON and see perfectly formatted output in seconds.
Frequently Asked Questions
What is JSON? +
JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write, and for machines to parse and generate.
What does this tool do? +
This tool formats, minifies, and validates JSON strings. Paste raw JSON and it will be formatted with proper indentation, or minified to remove all whitespace for compact transmission.
How do I validate JSON? +
Simply paste your JSON and click "Format". If invalid, an error message will explain what's wrong.
Is this tool free and private? +
Yes, completely free and private. All processing happens in your browser with zero server transmission.
Frequently Asked Questions
- JSON (JavaScript Object Notation) is a lightweight data interchange format. It is easy for humans to read and write, and easy for machines to parse and generate. It is the standard format for REST API responses.