Tools / Security
JWT Lab
Decode, sign HS/RS/ES/PS, verify JWK/JWKS, inspect claims. Free, runs entirely in your browser—nothing is uploaded.
What you can do
- Decode
- Sign HS/RS/ES/PS
- Verify JWK/JWKS
- Inspect claims
Private by design
JWT Lab runs entirely in your browser. Your input is never uploaded, there is no sign-up, and the tool keeps working offline after the first visit.
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