JWT Generator

Header

Choose the algorithm for signing the JWT. Note: Only HMAC algorithms are fully supported for client-side signing.

Payload

Add any additional claims as valid JSON

Signature

For HS256/HS384/HS512 algorithms, a secret key is required to sign the JWT.

Generated JWT

About JWTs

JSON Web Tokens (JWTs) are an open standard (RFC 7519) for securely transmitting information between parties as a JSON object. They are commonly used for authentication and information exchange in web development.

JWT Structure

  • Header: Contains the type of token and signing algorithm
  • Payload: Contains the claims (statements about an entity)
  • Signature: Verifies that the sender is who they claim to be