JSON Formatter & Validator
Format, validate, and minify JSON instantly. Paste raw or minified JSON — get clean, readable output.
Frequently Asked Questions
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Format adds indentation and line breaks for human readability. Minify removes all whitespace to produce the smallest possible string — useful for production APIs and storage.
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Missing or extra commas, unclosed brackets or braces, unquoted keys, and other JSON specification violations.
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No. All formatting runs locally in your browser using JavaScript. Nothing is transmitted anywhere.
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Yes, completely free with no account required.