JSON
JSON Formatter & Validator
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Overview
Free online JSON formatter and validator. Beautify, minify, and validate JSON data. Customizable indentation with syntax error detection.
Format, validate, and beautify your JSON data with customizable indentation.
Common workflows
- Format and validate JSON before committing, debugging, or pasting payloads into API tools.
- Decode JWTs, Base64 strings, URL-encoded text, and HTML entities while investigating data flow issues.
- Preview HTML, CSS, and JavaScript together or convert between related web data formats like CSV, JSON, and YAML.
FAQ
What happens if my JSON is invalid?
The tool will show a clear error message indicating what's wrong with your JSON syntax.
Can I minify JSON?
Yes! Click the Minify button to compress your JSON to a single line.