Click "Generate Secret" to create a new JWT secret
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JWT Security Best Practices
What is a JWT Secret? A JWT secret is a key used to sign JSON Web Tokens, ensuring they haven't been tampered with. A strong, random secret is essential for JWT security.
Secret Key Guidelines
- Length: Use at least 64 characters for production environments.
- Randomness: Ensure true randomness by using cryptographically secure generators.
- Storage: Store secrets securely in environment variables or secret management systems, never in code.
- Rotation: Regularly rotate your JWT secrets to limit the impact of potential leaks.
Additional JWT Security Tips
- Set appropriate expiration times (exp claim) for your tokens.
- Consider using asymmetric keys (RS256) instead of symmetric secrets (HS256) for larger applications.
- Validate all JWT claims on the server side, including "iss" (issuer) and "aud" (audience).
- Implement token revocation mechanisms for logout functionality.
- Use HTTPS to prevent token interception during transmission.
About This Tool
This JWT secret generator uses the Web Crypto API to create cryptographically secure random values. All generation happens in your browser - no secrets are transmitted over the network or stored on any server.