사용 방법: JWT 생성기

설명

Sign and verify JSON Web Tokens entirely in your browser — HS256, HS384, HS512, RS256 and ES256 run on your own WebCrypto, fresh RSA-2048/EC P-256 pairs export as PKCS#8 and SPKI PEM, exp/iat come back as human dates, and the unsigned "none" algorithm is refused by design. Nothing is uploaded.

• 보안 도구
• 모든 연산이 클라이언트에서 수행되어 API 키, 토큰 등 민감한 데이터에도 안전합니다.

사용 방법

JWT 생성기 사용법은 세 단계:

1. 입력창에 데이터를 붙여넣기 (또는 예제 불러오기).
2. 목적에 맞게 옵션 조정.
3. 출력 복사·다운로드·확인 — 입력에 따라 실시간 업데이트.

실행

예제

Builds a signed HS256 token whose exp (2030-01-01 UTC) is shown with its human UTC/local time. Secrets never leave the browser and the unsigned "none" algorithm is refused by design — for inspecting foreign tokens use the Decoder / Verifier pages (the loopback pair of this generator).

출력（由工具此刻实时生成）

Signed with HS256 — the token below is the compact serialization:

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiIyNjE3MyIsInN1YiI6ImRlbW8iLCJleHAiOjE4OTM0NTYwMDB9.-ZCXzFd37b5ZNaDyjyUHfPXEyKzs9ta4TTj5AyO5xpE

Header:  {"alg":"HS256","typ":"JWT"}
Payload: {"iss":"26173","sub":"demo","exp":1893456000}

Claim times (your browser clock):
  Expires at: 1893456000 = 2030-01-01T00:00:00.000Z UTC | local: Tue Jan 01 2030 00:00:00 GMT+0000 (Coordinated Universal Time)  -> still valid

Paste the token into the Verify mode on this same page (or the JWT Verifier page) to check it; to inspect claims without verifying use the JWT Decoder page. Everything ran in your browser — the secret and key never left this machine.

此输出由工具真实运行产生，并非人工编写。

사용 사례

JWT 생성기이 유용한 상황:

• Sign and verify JSON Web Tokens entirely in your browser — HS256, HS384, HS512, RS256 and ES256 run on your own WebCrypto, fresh RSA-2048/EC P-256 pairs export as PKCS#8 and SPKI PEM, exp/iat come back as human dates, and the unsigned "none" algorithm is refused by design. Nothing is uploaded.

매개변수

이 도구에는 옵션이 없으며 입력에만 작용합니다.

FAQ

주의 사항

• 全部计算在浏览器端完成，因此超大输入受限于标签页内存，而非服务器上传限制。

관련 도구

JWT 생성기 → · 보안 도구 →