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JWT Decoder

Decode a JWT into header and payload JSON, and optionally verify the signature using a secret.

JWT Token

Verification Secret

Provide the same secret only if you want signature verification on supported HMAC algorithms.

Algorithm Verification Status

Decoded Header

Decoded Payload

JWT Signature

Mode Decode

Algorithm N/A

Verification Not checked

Status Idle

Create a signed JWT from header JSON, payload JSON, and a secret key.

JWT Header JSON

JWT Payload JSON

Secret Key

JWT Output

Supported signing algorithms for encoding: `HS256`, `HS384`, and `HS512`.

Mode Encode

Header Type JSON

Payload Type JSON

Status Idle