JSON Formatter Online - Beautify & Validate JSON

Format JSON online for free. Beautify, validate, and minify JSON data with syntax highlighting and error detection.

Input JSON

Formatted JSON

What This Tool Does

1
Paste JSON data
Enter or paste your JSON code in the input area
2
Click Format
The tool will beautify and validate your JSON automatically
3
Review formatted output
See properly indented, readable JSON with syntax highlighting
4
Copy or minify
Copy the formatted JSON or minify it for compact production use

1

Enter or paste your JSON code in the input area

2

The tool will beautify and validate your JSON automatically

3

See properly indented, readable JSON with syntax highlighting

4

Copy the formatted JSON or minify it for compact production use

The tool will highlight syntax errors and indicate where the JSON is invalid so you can fix it.

Yes, you can typically select 2-space or 4-space indentation for formatted output.

Minification removes all unnecessary whitespace and newlines to create the smallest possible JSON file size.

The tool efficiently handles large JSON files, though extremely large files may take longer to process.