JWT Token Input
Paste your JWT token below to decode it
Decoded Header
JWT header contains algorithm and token type
Decoded Payload
JWT payload contains the claims and data
Signature
JWT signature for verification
Signature will appear here...
Features
- Decode JWT header and payload
- Extract signature information
- Validate JWT format
- Copy decoded parts separately
- Sample JWT for testing
- No server communication
Security & Privacy
Client-Side Only
All JWT decoding happens in your browser. Tokens are never sent to our servers.
What is JWT?
JSON Web Token is a compact, URL-safe means of representing claims securely between two parties.
Verification Note
This tool only decodes JWTs. Signature verification requires the secret key.