JSON Formatter & Validator
Format, validate, and beautify JSON with error detection.
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JSON formatting
Makes JSON readable and validates syntax.
Common errors
Trailing commas, single quotes, unquoted keys, comments.
Tip
Use minify for production payloads; pretty print for debugging.
Frequently Asked Questions
Quick answers about usage, privacy, and best practices.
Privacy: Everything runs locally in your browser. No data is sent to a server.
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Encode text to Base64 or decode Base64 strings back to plain text.
Privacy First: This tool runs entirely in your browser. No data is sent to any server.