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Popular JSON Formatter
Format, validate & beautify JSON
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What is JSON Formatter?
JSON Formatter is a free online tool that helps you format, validate, and beautify JSON data. It makes your JSON readable with proper indentation and syntax highlighting.
Features
- Format JSON with customizable indentation (2 or 4 spaces)
- Validate JSON syntax and show detailed error messages
- Minify JSON for production use
- Copy formatted output with one click
- Download as .json file
- Dark mode support
How to Use
- Paste your JSON data in the input area
- Click "Format" to beautify or "Minify" to compress
- Copy the result or download it as a file
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 easy for machines to parse and generate.
Why format JSON?
Formatting JSON makes it easier to read, debug, and understand the data structure. It adds proper indentation and line breaks.