JSON formatter
Format, validate and minify JSON in one click
Input
Tip: Ctrl+Enter to format
Output
Formatted JSON will appear here…About JSON formatter
JSON Formatter is a free online tool to format, validate, beautify and minify JSON data. Paste your JSON and instantly get a clean, readable format with syntax highlighting. Supports nested objects, arrays, and detects errors with line numbers. No data is sent to any server — everything runs in your browser.