JSON Formatter & Validator

Pretty-print, minify, and validate JSON in your browser.

Pretty-print, minify, or validate JSON in your browser. Quickly make large JSON payloads readable or check that a file is valid.

• Paste JSON to format, minify, or validate it.
• Use the sample button to see the formatter in action.
• Fix validation errors shown in plain language.

Pretty-printed JSON is much easier to review in pull requests.