Developer Playground

JWT Tool

JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties. This tool allows you to decode, verify, and generate JWTs. JWTs are commonly used for authentication and information exchange in web applications.

JWT Generator

Create a new JWT token by setting the header, payload, and signing with a secret key.

Header (JSON):

Payload (JSON):

Secret Key:

Algorithm:

JWT Decoder

Paste your JWT token below to decode its header and payload.

JWT Token:

JWT Verification

Verify a JWT token against a secret key or public key.

JWT Token:

Secret Key or Public Key:

Key Type:

Secret Key (for HMAC)

Common JWT Claims

The following are standard JWT claims that you can include in your payload:

Claim	Description
iss	Issuer of the token
sub	Subject of the token (usually user ID)
aud	Audience the token is intended for
exp	Expiration time (Unix timestamp)
nbf	Not before time (Unix timestamp)
iat	Issued at time (Unix timestamp)
jti	JWT ID (unique identifier for the token)