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Encoders and Decoders

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Base32 Encoder / Decoder

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Base64 Encoder / Decoder

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JWT Decoder

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Encoders and Decoders

JWT Decoder

client

Input JWT

Header

Payload

JWT Decoder is a free online developer tool to decode a JSON Web Token (JWT) instantly to view the claims inside, such as the algorithm used to sign it and the attached data.

Enter a JSON Web Token you would like to decode in the input field and then click the decode button. The result will be split into header and payload in the JSON format accordingly.

The header consists of the algorithm used to encode the signature, such as HS256 which means the token uses HMAC-SHA256 to generate the signature and the token type; for instance JWT.

The payload contains a set of claims as known as data in a token. One of the standard claims is iat which stands for Issued At. It's a UNIX timestamp referring to the creation date and time of the token.

Once a JSON Web Token is decoded, you can copy the result to your clipboard using the copy button.

Related Tools

URL Encoder / Decoder

Encodes URL strings to comply with the URL standard or decodes URL strings to a human-friendly and more readable one.

HTML Entity Encoder / Decoder

Encodes a string to HTML entities or decodes HTML entities to their original characters. Supports named references and decimal values.

Base32 Encoder / Decoder

Encodes text to Base32 or decodes Base32 to text according to RFC 4648. Supports UTF-8.

Base58 Encoder / Decoder

Encodes either text or HEX to Base58 or decodes Base58 to text or HEX.

Base64 Encoder / Decoder

Encodes text to Base64 or decodes Base64 to text. Supports UTF-8.

Base64 Image Encoder / Decoder

Encodes a binary image to Base64 or decodes Base64 to a binary image on your browser without uploading it.