JWT Token Viewer

Decode and inspect JSON Web Tokens

Paste your JWT token here

ℹ️ About JWT Tokens

JSON Web Tokens (JWT) are an open standard (RFC 7519) for securely transmitting information between parties as a JSON object. They consist of three parts:

Header: Contains token type and signing algorithm
Payload: Contains the claims (user data, permissions, etc.)
Signature: Used to verify the token hasn't been tampered with

🔒 Security Note

This tool decodes JWTs locally in your browser. Your tokens are never sent to any server. However, be cautious when pasting production tokens in any online tool.