Paste the three dot-separated segments of a JWT.
Local JWT decoder
JWT를 어디에도 보내지 않고 확인하세요.
Decode a JSON Web Token's header and payload locally, then inspect standard time claims in your browser.
* Nothing is uploaded. JwtLens decodes this token in your browser tab only.
Local JWT decoder
Inspect claims before writing verification code
Review the algorithm, claims, and iat/nbf/exp timestamps.
Use a trusted server library and key when you need to verify authenticity.
FAQ
What does JwtLens send?
Does JwtLens upload my token?
No. Segment decoding runs locally and the token is not stored.
Does it verify the signature?
No. JwtLens only decodes header and payload JSON. Decoding alone is not authentication.