Paste JSON and click Validate
Tip: press Ctrl/⌘ + Enter to validate.
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Format, minify, validate JSON — runs locally in your browser. No uploads.
This free JSON formatter helps you format, validate, and minify JSON instantly. It works directly in your browser so your data stays private.
Formatted JSON is easier to read, debug, and share. Developers often format JSON to find errors like missing commas or incorrect brackets.
Paste your JSON into the editor above, click Format or Validate, and instantly see the result.