No, this tool verifies only HMAC (HS*) locally. Public/private key verification requires additional crypto APIs and key handling.

Is my token sent to a server?

No, decoding and verification run entirely in your browser.

أدوات المطوّرين/فاك ترميز JWT

فاك ترميز JWT

رمز JWT

الصق JWT لعرض header و payload.

التحقق من التوقيع

السر (لـ HS256/384/512)

فك ترميز وفحص رمز JWT: header، payload والتوقيع. التحقق من HMAC اختياري.

common.info

JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object.

jwt decoderhs256 hs384 hs512 verifybase64urldecode header payload signature

Examples and real-life use cases

Inspect JWT claims during development and debugging.
Verify HMAC signatures with a shared secret for HS256/384/512.
Check exp/nbf validity and timezone interpretation.

FAQ

Can I verify RS256?: No, this tool verifies only HMAC (HS*) locally. Public/private key verification requires additional crypto APIs and key handling.
Is my token sent to a server?: No, decoding and verification run entirely in your browser.