JSON Formatter

Format, minify, sort keys, and convert between JSON objects and escaped strings.

Paste JSON

Indent

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How It Works

Paste any JSON text into the input area and click Format. The tool parses the JSON in your browser, validates its structure, and pretty-prints it with consistent indentation and syntax highlighting. Errors are reported inline so you can pinpoint exactly where the problem is. Nothing is sent to a server — all processing happens locally.

Use Cases

Debugging API responses from REST or GraphQL endpoints
Tidying minified JSON config files before committing them
Validating data files in CI without installing extra tooling
Quickly checking that a payload matches the expected schema