🔑 JWT 解码器

解析 JSON Web Token，查看Header和Payload

📝 输入 JWT Token

🟢 Payload

eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyLCJleHAiOjE1MTYyNDI2MjIsInJvbGUiOiJhZG1pbiJ9

🔴 Signature

2xJxJ7jJ7Qp7Qp7Qp7Qp7Qp7Qp7Qp7Qp7Qp7Qp7Q

📋 Header (算法信息)

{ "alg": "HS256", "typ": "JWT" }

📋 Payload (数据内容)

{ "sub": "1234567890", "name": "John Doe", "iat": 1516239022, "exp": 1516242622, "role": "admin" }

ℹ️ 签名验证

签名：HMAC-SHA256 算法需要密钥才能验证签名有效性