Free Online JWT Token Decoder & Inspector

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What is JWT Decoder?

JWT Decoder is a tool for parsing and inspecting JSON Web Tokens (JWTs). JWTs are compact, URL-safe tokens used for authentication and information exchange. This tool helps you view the header, payload, and verify token expiration without needing a secret key.

How to Use JWT Decoder

Paste your JWT token in the input field
The token is decoded automatically in real-time
View header (algorithm, type) and payload (claims)
Check expiration status and timestamps

JWT Decoder Features

Instant decoding of JWT tokens
View header and payload claims
Human-readable timestamps for iat, exp, nbf
Expiration status indicator
Copy individual sections

JWT Decoder FAQ

Can this tool verify JWT signatures?: This tool decodes JWTs but does not verify signatures, as that requires the secret key. Never share your secret keys online.
Is it safe to paste my JWT here?: Yes! All processing happens in your browser. The token is never sent to any server.
What do the standard claims mean?: iss (issuer), sub (subject), aud (audience), exp (expiration), nbf (not before), iat (issued at), jti (JWT ID) are standard claims defined in RFC 7519.