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JWT Generator & Signer
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JWT Generator & Signer
Build and sign JWT tokens with HMAC — runs entirely in your browser
Sign
Algorithm
HS256 (HMAC-SHA-256)
HS512 (HMAC-SHA-512)
Header (auto)
{"alg":"HS256","typ":"JWT"}
Secret key
Quick claims
iss
aud
jti
+1h exp
+24h exp
{ "sub": "1234567890", "name": "John Doe", "iat": 1781008470, "exp": 1781012070 }
GENERATE TOKEN
Output
Decode any JWT
DECODE
DWG · S-JWT-GENERATOR
100% client-side
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