JSON Formatter & Validator

Format, validate, and minify your JSON data instantly. Beautify with custom indentation or compress to a single line.

Indent:

Input0 lines · 0 chars · 0 B

Output

Pretty-print your JSON with customizable indentation. Choose between 2 spaces, 4 spaces, or tabs for your preferred style.

Instantly validate your JSON and get clear error messages with position details to help you quickly find and fix syntax issues.

Compress JSON to a single line to reduce size, or beautify minified JSON for easy reading. All processing happens locally in your browser.

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