{} Developer
JSON Formatter & Validator
Paste JSON to format, validate, or minify — runs entirely in your browser.
Runs in your browserNo account requiredNo uploadFree
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About JSON Formatter & Validator
Paste any JSON document and instantly format it with consistent indentation, validate that it parses, or minify it to a single line for transport.
Everything runs in your browser — your data is never sent to a server. Safe for sensitive payloads like API responses, secrets, and configs.
Frequently asked questions
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