인코더 및 암호
JWT 생성기 (HS256)
Sign a JWT with HMAC-SHA256 — in your browser.
Fix the JSON to see a token.
Signed locally with Web Crypto's HMAC-SHA256 — nothing leaves your browser.
편집자 노트
Understanding · A signature, not a secret.
이 심층 챕터는 현재 영어로만 제공됩니다. 위의 변환 도구는 귀하의 언어로 작동하지만, 긴 설명 글은 아직 번역되지 않았습니다.
자주 묻는 질문
Quick answers.
›Is my secret key safe?
Yes. The hashing and signature generation take place entirely within your browser using the Web Crypto API. Your secret key is never sent to our servers.
›What is HS256?
HS256 stands for HMAC with SHA-256. It is a symmetric signing algorithm, meaning the same secret key is used to both create the signature and verify it later.
›Why is the output divided into three parts?
A JWT consists of a header, a payload, and a signature, each separated by a dot. They are Base64Url encoded to ensure they can be safely transmitted in HTTP headers or URLs.
›Can I use this for production tokens?
While technically valid, this tool is intended for debugging and development testing. For production environments, you should use standard libraries to automate token generation within your application code.
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