JSON Validator & Formatter
Free online JSON formatter and validator. Pretty print, beautify, or minify JSON. Validate syntax, fix errors, custom indentation—no signup required.
Status
Valid JSON
3 lines
42 characters
Sample JSON
Frequently Asked Questions
- How do I validate JSON syntax?
- Paste your JSON into the editor. The tool will automatically validate it and highlight any syntax errors with line and position information.
- What is the difference between JSON minify and pretty print?
- Pretty print adds indentation and line breaks to make JSON human-readable. Minify removes all whitespace to create compact, single-line JSON—reducing file size by 60–80% for APIs and production.
- Is this JSON formatter free to use?
- Yes. This is a 100% free online JSON formatter and validator. No signup, no uploads—all processing happens in your browser for privacy and speed.
- Can I format JSON with custom indentation?
- Yes. Use the Format button and choose 2 spaces, 4 spaces, or Tab for indentation. The formatted output updates in real time.