JWT Decoder
Decode JSON Web Tokens (JWT) locally to view header parameters, payload claims, and signature status without exposing your keys or credentials to third-party servers.
Header
Payload
Security Note
This decoder runs entirely in your browser. Your tokens are never sent to any server. We process the Base64 segments locally using your device's resources.
JWT 解码器 |安全地检查您的代币
直接在浏览器中解码、检查和调试 JWT 标头、有效负载和签名 — 完全离线且私密。
它的作用
我们的 JWT 解码器将复杂的 JSON Web 令牌转换为人类可读的格式。一切都在您的浏览器本地进行，将您的敏感数据准确地保存在它所属的地方 - 随身携带。
为什么它很重要
JWT 通常包含敏感的用户信息。将它们粘贴到随机的在线网站中是一个主要的安全风险。我们构建了这个工具，以便您可以私下检查您的令牌，而无需它们离开您的机器。
它是如何运作的
该工具获取您的令牌，将其分解为三个标准部分（标头、有效负载和签名），并立即解码 base64url 字符串，以便您可以准确地看到里面的内容。
完美适合
- 解码身份验证令牌
- 验证令牌到期日期
- 检查用户角色和声明
- API 授权疑难解答
- 验证加密算法
主要优点
- 闪电般快速的解码
- 私密且安全的设计
- 干净、可读的 JSON 格式
- 完全免费——无需帐户
- 零数据存储——使用后擦除内存
主要特点
- 即时 JWT 解码
- 标头和有效负载的清晰并排视图
- 美观、易于阅读的 JSON 格式
- 自动检测过期令牌
- 完全支持标准加密算法
- 无服务器上传（100% 私有）
- 离线工作完美
JWT 解码器是一种轻量级、隐私优先的工具，可在几秒钟内检查您的令牌配置。
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