JWT Decoder

Decode JSON Web Tokens

ℹ️ Note: This tool only decodes JWT tokens. It does NOT verify signatures. Never paste sensitive tokens on untrusted websites.

JWT Token

About JWT

What is JWT?

JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties. It consists of three parts: Header, Payload, and Signature.

Structure

header.payload.signature

Each part is Base64URL encoded and separated by dots.

Common Claims

iss: Issuer
sub: Subject
aud: Audience
exp: Expiration time
iat: Issued at