Free JSON Formatter & Validator
Paste your JSON data and instantly format it with proper indentation, validate its structure, or minify it for production use. Everything runs in your browser — your data never leaves your device.
Features
Format — pretty-print JSON with 2-space, 4-space, or tab indentation. Validate — check if your JSON is syntactically correct with clear error messages. Minify — remove all whitespace for the smallest possible output.