Lokaler Wörterbuch-Angriffstest
Calculates HMAC signatures offline using Web Crypto against 106 top breach passwords.
Decoded Token Header
{
"alg": "HS256",
"typ": "JWT"
}Decoded Token Payload
{
"sub": "1234567890",
"name": "Alice",
"role": "admin",
"iat": 1516239022
}AlgorithmusHS256
Wortliste106 Keys
PrüfstatusReady
Prüfdauer-
100% Offline Cryptography
HMAC calculations run using the Web Crypto API strictly within browser memory. Your production tokens and signatures never touch the network.
Full HMAC Spec Support
Accurately checks HS256, HS384, and HS512 tokens using standard Base64url signature encoding and binary digest comparisons.
Curated Wordlist Defense
Contains the top 100+ most commonly abused default and framework secrets found across real-world security breaches.