Free JWT Token Decoder & Verifier Online
Decode JWT (JSON Web Tokens) header and payload, check expiry, and verify token signatures. Supports RS256, HS256, ES256, and other JWT signing algorithms. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.
{
"alg": "HS256",
"typ": "JWT"
}{
"sub": "1234567890",
"name": "Alice Developer",
"admin": true,
"iat": 1516239022,
"exp": 1792870000
}How It Works
Paste JWT Token
Enter the complete JWT string (header.payload.signature).
View Decoded Parts
See decoded header (algorithm, type) and payload (claims) in JSON format.
Check Expiry
See token issue time, expiry time, and whether token is currently valid.
Verify Signature
Enter signing secret or public key to verify token authenticity.
Frequently Asked Questions
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