For testing only — do not use real secrets in this tool
About JWT Generator
Generate signed JWT tokens for testing — entirely in your browser using the Web Crypto API. • Choose algorithm: HS256, HS384, or HS512 • Edit the payload JSON — add any claims you need (sub, exp, iat, etc.) • Enter a secret key to sign the token • Output is a ready-to-use JWT — paste it into Postman, curl, or your app