Format, validate, and beautify JSON data with one click.
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Copy your raw or minified JSON and paste it into the input area from any API response or config file.
Click "Format / Beautify" to add indentation. Click "Minify" to compress it for production use.
A green checkmark means valid JSON. Red shows exactly what's wrong. Copy the output when done.
JSON (JavaScript Object Notation) is a lightweight, human-readable data format widely used in APIs, web applications, and configuration files.
Formatting adds indentation and line breaks for readability. Minifying removes all whitespace to reduce file size for production use.
The error message pinpoints the problem. Common issues: missing quotes around keys, trailing commas, and mismatched brackets.
Yes. The tool runs entirely in your browser and handles large JSON strings well.