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{ } JSON Formatter

Format, validate, minify, and sort JSON with syntax highlighting

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Format and Validate JSON Online

The JSON Formatter provides a full-featured editing environment powered by Monaco (the same editor behind VS Code). Paste any JSON to instantly validate it, then format with configurable indentation, minify for production use, or sort keys alphabetically for consistent structure.

Real-time statistics show key count, nesting depth, and file size as you type. Ideal for debugging API responses, cleaning up configuration files, or preparing JSON payloads for testing.