JWT Decoder & Encoder

Decode, verify, and generate JSON Web Tokens locally. Parse header and payload details without server interactions for full privacy.

Encoded JWT

JWT Structure:

Header.Payload.Signature

HEADER: ALGORITHM & TOKEN TYPE(Read Only)

PAYLOAD: DATA(Read Only)

VERIFY SIGNATURE

HMACSHA256(
base64UrlEncode(header) + "." +
base64UrlEncode(payload),

)

Status:

Verifying HS256...