JSON Formatter & Validator
Format, prettify, minify, and validate JSON data instantly. Clean syntax highlighting, error detection, and easy clipboard copy.
Esta herramienta se ejecuta en el navegador. Nombres y pasos están localizados; la interfaz interactiva es la misma en todos los idiomas.
How to Use
- Paste the JSON (or a minified API response).
- Click format to pretty-print, or minify to compact it.
- If validation fails, read the parse error — a trailing comma or unquoted key is the usual cause.
- Copy the result. Do not rely on this page as a JSON Schema checker.
Key Features
- Local parse/format — no upload
- Pretty-print and minify
- Inline syntax errors
- Works offline after the page is loaded