JWT Generator
Generate JSON Web Tokens with custom payload and secret key
About JWT
JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.
Common use cases:
- Authentication
- Information Exchange
- Secure Data Transfer
Need to decode a JWT? Try our JWT Decoder tool.
Understanding JWT Generation
JWT generation creates secure tokens that can be used for authentication and authorization. By signing tokens with a secret key, you ensure that the data cannot be tampered with and can be trusted by receiving parties.
Key Features
- Custom payload creation
- Multiple signing algorithms
- Expiration time control
- Issuer and subject claims
- Secure key management
Common Use Cases
- API access tokens
- User authentication
- Service-to-service auth
- Temporary credentials
- Session tokens
JWT Best Practices
Use Strong Secret Keys
Use at least 256-bit secrets for HS256 and store them securely. Rotate keys regularly for better security.
Set Appropriate Expiration
Shorter lifetimes reduce risk if tokens are compromised. Use refresh tokens for longer sessions.
Include Relevant Claims
Include only necessary information in the payload. Avoid sensitive data as JWT is encoded, not encrypted.
Choose the Right Algorithm
HS256 for symmetric keys, RS256 for asymmetric. Consider ES256 for better performance with elliptic curves.