Developer tool
JSON Formatter & Validator
Paste your JSON to format, validate or minify it. Everything runs in your browser — your data never touches a server.
About this tool
This formatter uses your browser's native JSON.parse() and JSON.stringify()
— no external libraries, no server-side processing. Your JSON data never
leaves your device.
Features:
• Format (pretty-print) with 2-space indentation
• Minify (remove all whitespace)
• Validate with line/column error position
• Copy output to clipboard
Features:
• Format (pretty-print) with 2-space indentation
• Minify (remove all whitespace)
• Validate with line/column error position
• Copy output to clipboard