Is my data sent to a server?

No. All processing happens in your browser. Your JSON never leaves your device.

What's the maximum JSON size?

There's no hard limit, but very large files (>10MB) may slow down your browser.

Is my data sent to a server?

No. All processing happens in your browser. Your JSON never leaves your device.

What's the maximum JSON size?

There's no hard limit, but very large files (>10MB) may slow down your browser.

Gratis

Formateador y Validador JSON

Formatea, minifica y valida JSON con resaltado de sintaxis y análisis de estructura.

100% GratisSin Registro RequeridoSe Ejecuta en Tu Navegador

Sangría:

Entrada

Salida

La salida aparecerá aquí...

Acerca de JSON Formatter & Validator

Paste JSON to format with custom indentation, minify for production, or validate structure. Shows key counts, nesting depth, and data type breakdown. Works entirely in your browser.

Preguntas Frecuentes

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Decode and inspect JWT tokens in your browser.

Paste a JWT token to instantly decode and inspect its header, payload, and signature. View claims like expiration, issuer, and custom data. Everything runs in your browser — tokens are never sent to a server.

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Test regular expressions with live highlighting.

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Encode and decode Base64 strings online.

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LaunchChat procesa configuraciones JSON para la personalización del widget.

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