Paste the JWT from a request, cookie, or test fixture into the field.
Local JWT inspection
믿기 전에 JWT를 브라우저에서 확인하세요.
Inspect a JSON Web Token's header, payload, and standard claims in your browser without sending the token anywhere.
* Nothing is uploaded. TokenLens only decodes the text in this browser tab.
Local JWT inspection
Read a token without handing it to a server
Decode it locally to inspect the header, payload, and common time claims.
Use the warning and signature boundary to decide what still needs server-side verification.
FAQ
What does TokenLens verify?
Does TokenLens verify the signature?
No. It only decodes the header and payload. Signature verification needs the issuer's trusted key and validation rules.
Does TokenLens upload my token?
No. The token stays in this browser tab. The input is limited to 64 KiB.