JWT Generator
Create signed JWT tokens online using HS256, HS384, or HS512 via the Web Crypto API. Free JWT generator for testing auth flows — no server calls.
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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