JSON Formatter & Validator

Format and validate JSON with syntax highlighting. Minify, prettify, and sort keys. All processing in your browser.

X LinkedIn

Convert to:

JSON Input

Lines: 11Characters: 184

Indent:Sort keys

View:

OutputValid JSON

Lines: 0Characters: 0

Tips

• All processing runs in your browser; your JSON never leaves your device.
• Use Prettify to format minified JSON with optional key sorting.
• Use Minify to remove whitespace and reduce size.
• Convert to XML, CSV, or YAML; CSV works best with an array of objects.
• Use the Tree view to explore JSON as an expandable hierarchy (JSON output only).

Frequently Asked Questions

Yes, completely free with no sign-up. Format and validate unlimited JSON in your browser.

No. All formatting and validation happens in your browser. Your data never leaves your device.

The tool shows the error message and, when possible, line and column. Fix the syntax (missing comma, quote, or bracket) and the output will update.

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