JWT Generator
Generate, decode, and inspect JSON Web Tokens (JWT) with custom claims, algorithms (HS256, RS256), and expiration settings.
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What is JWT Generator?
A JWT generator allows you to create and sign JSON Web Tokens for testing and debugging. Customize headers, payloads, and secrets to simulate authentication tokens.
Key Benefits
- Token simulation
- Custom payload
- Algorithm selection
- Instant generation
Common Use Cases
- •Auth testing
- •API debugging
- •Security validation
- •Learning JWT
How to Generate JWT
- Set payload: Add claims and data.
- Set secret: Enter signing key.
- Choose algo: Select HS256 or RS256.
- Generate: Get signed token.
Key Features
- Create JWT tokens
- Custom payload editor
- Algorithm selection (HS256, RS256)
- Expiration time configuration
- Secret key input
- Copy generated token
Frequently Asked Questions
What is a JWT?
JSON Web Token is a compact, URL-safe token with header, payload, and signature. Used for authentication and data exchange.
What algorithm should I use?
HS256 for symmetric keys (shared secret), RS256 for asymmetric (public/private key pairs).
What claims should I include?
Standard claims: iss (issuer), exp (expiration), sub (subject), aud (audience), iat (issued at).
How long should tokens last?
Access tokens: 15-60 minutes. Refresh tokens: hours to days. Balance security vs user experience.