What is a JSON formatter?

A JSON formatter makes raw JSON data human-readable by adding indentation, spacing, and syntax highlighting.

How do I validate JSON?

Paste or upload your JSON into the tool, and it will automatically check for syntax errors and highlight problems.

Yes. The tool includes a minify option to remove unnecessary spaces and line breaks for compact JSON.

No. Everything runs locally in your browser for privacy. Your JSON is never uploaded to a server.

Pretty print & validate JSON data

Options

Tune formatting and behavior.

Indent

Sort keys

Sort object keys alphabetically (deep).

Auto-format on paste

Input

Paste or type JSON. Strict JSON (no comments or trailing commas).

Tip: Ctrl + Enter to prettify • Ctrl + M to minify

Output

Formatted/minified JSON or tool results.

Indent: 2 • Sort keys: false • Auto-paste: true

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