Debug Your Tokens
Paste your JWT and instantly decode its contents. Our tool visualizes the Header, Payload, and Signature structure, helping you debug authentication issues and verify token claims (like expiration).
Key Features
Secure Decoding
Everything happens in your browser. Tokens are never sent to a server.
Expiration Check
Instantly see if the token is active or expired.
Pretty Print
Auto-formats the JSON for easy reading.