使用方法: JWTSigner
JWTSigner 是一款免費線上安全工具工具,可在瀏覽器中即時seal a payload with RS256 (or HS256/HS384/HS512 and ES256) right in the browser: paste claims and a PKCS#8 private key — or generate an RSA/EC pair on the spot — then verify the result on the same page. "none" is never accepted, and your keys never leave this machine。貼上資料、調整選項即可即時獲得結果——無需安裝、無需註冊,任何資料都不會上傳到伺服器。
說明
Seal a payload with RS256 (or HS256/HS384/HS512 and ES256) right in the browser: paste claims and a PKCS#8 private key — or generate an RSA/EC pair on the spot — then verify the result on the same page. "none" is never accepted, and your keys never leave this machine.
- 安全工具
- 由於全部運算都在客戶端完成,使用 API 金鑰、權杖或私有記錄等敏感資料時,JWTSigner 同樣安全。
使用方法
使用 JWTSigner 只需三步:
- 將資料貼上到輸入框(或載入範例)。
- 依目標格式或使用情境調整選項。
- 複製、下載或檢視輸出——輸入時結果即時更新。
執行
範例
Same builder, seeded for signing flows; the live page pre-selects RS256 and activates as soon as you paste a PKCS#8 private key — or generate an RSA/EC pair right on the page (SPKI public export included). Tokens made here verify on this same page.
輸出(由工具此刻实时生成)
Signed with HS256 — the token below is the compact serialization:
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOjQyLCJyb2xlIjoiZGVtbyJ9.j3xOY9SeZp9EnaVLrgVmaRQxSi5ppfol0ImzkJUsr4g
Header: {"alg":"HS256","typ":"JWT"}
Payload: {"uid":42,"role":"demo"}
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。
使用場景
JWTSigner 常見的使用情境:
- Seal a payload with RS256 (or HS256/HS384/HS512 and ES256) right in the browser: paste claims and a PKCS#8 private key — or generate an RSA/EC pair on the spot — then verify the result on the same page. "none" is never accepted, and your keys never leave this machine.
參數說明
此工具沒有可設定參數,直接對輸入內容生效。
常見問題
什麼是 JWT Signer?
JWT Signer 用於seal a payload with RS256 (or HS256/HS384/HS512 and ES256) right in the browser: paste claims and a PKCS#8 private key — or generate an RSA/EC pair on the spot — then verify the result on the same page. "none" is never accepted, and your keys never leave this machine。它完全在瀏覽器內執行,資料保持私密。
JWT Signer 可以免費使用嗎?
可以。JWT Signer 免費、無次數限制,無需註冊或安裝。
我的資料會被上傳嗎?
不會。所有處理都在本機瀏覽器完成,不會傳送到任何伺服器。
注意事項
- 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。