Security
Tools
Client-Side Only • Secure
JWT 解碼器
即時解碼您的 JSON Web Tokens (JWT)。所有處理都在客戶端完成，確保您的令牌永遠不會離開瀏覽器。
Invalid JWT format
Client-Side Secure
We respect your security. Tokens pasted here are decoded locally using JavaScript and are never transmitted to our servers.
Header
Algorithm & Token Type
{}
Payload
Data (Claims)
{}
Signature
Verification
HMACSHA256(
base64UrlEncode(header) + "." +
base64UrlEncode(payload),
your-256-bit-secret
)