What is a JWT Encoder?
A JWT encoder creates signed JSON Web Tokens from a header, payload, and secret key. Supports HS256, HS384, and HS512 algorithms. Useful for generating test tokens during API development without a backend server.
Frequently Asked Questions
Which algorithms are supported?
HMAC-based: HS256, HS384, and HS512.
Can I use these in production?
They are valid JWTs, but for production, generate tokens server-side with properly managed secrets.
What should I put in the payload?
Common claims: sub (user ID), name, email, role, iat (issued at), exp (expiration timestamp).