JWT Decoder

Easily decode and inspect your JSON Web Tokens (JWTs). Paste your token and instantly view the header, payload, and signature—all formatted and readable.

What is JWT?

JWT stands for JSON Web Token. It's an open standard (RFC 7519) used for securely transmitting information between parties as a JSON object.

JWTs are commonly used for:

• Authentication (e.g., login sessions)
• Information exchange (e.g., passing data between services)

A typical JWT consists of three parts:

1. Header – contains the type of token and the signing algorithm used.
2. Payload – contains the claims (user data or other metadata).
3. Signature – ensures the token hasn't been tampered with.