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

JSON Formatter & Validator

Formatteer, minifieer en valideer JSON met syntaxismarkering en structuuranalyse.

100% GratisGeen Registratie NodigDraait in Uw Browser

Inspringingen:

Invoer

Uitvoer

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Over 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.

Veelgestelde Vragen

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JWT Decoder

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.

Regex Tester

Test regular expressions with live highlighting.

Base64 Encoder / Decoder

Encode and decode Base64 strings online.

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LaunchChat verwerkt JSON-configs voor widgetaanpassing.

Geen creditcard nodig

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