JWT Encoder & Decoder
Encode, decode, and verify JSON Web Tokens securely in your browser.
Signature Verification
Examples & Use Cases
- Token:
A JWT token containing user ID, email, roles, and expiration time encoded in the payload with proper headers and signature for secure authentication.
- Payload:
The decoded payload reveals user information like ID, email, admin role, and expiration timestamp, making it easy to understand token contents and validity.
Authentication JWTs help verify user identity and permissions while maintaining security through cryptographic signatures.
- Token Creation:
Generate a new JWT token with API scopes, client ID, and expiration time for secure API access and rate limiting.
- Token Verification:
Verify the token signature and decode the payload to check API permissions, rate limits, and token validity before granting access.
API tokens provide secure, stateless authentication for service-to-service communication and API access control.
- Session Token:
A JWT containing session ID, user preferences, last activity timestamp, and security flags for comprehensive session management.
- Session Validation:
Decode and verify session tokens to check user status, session expiry, and security constraints before allowing continued access.
JWT sessions provide stateless session management with built-in security and easy horizontal scaling.
- Service Token:
Create JWT tokens for service-to-service communication containing service identity, permissions, and request context.
- Token Validation:
Verify incoming service tokens to ensure request authenticity, check service permissions, and maintain secure microservices architecture.
Microservice JWTs enable secure, authenticated communication between distributed services with verifiable identity.