Trình tạo TOTP
Công cụ miễn phí trực tuyến Tạo mã mật khẩu dùng một lần dựa trên thời gian (2FA) tương thích với Google Authenticator, không cần cài đặt
What is TOTP?
TOTP (Time-based One-Time Password) is a temporary code that changes every 30 seconds. It's commonly used for two-factor authentication (2FA) on websites like Google, GitHub, and many others. The code is generated using a shared secret key and the current time, making it secure without requiring network connectivity.
How to Use This TOTP Generator
Enter your Base32-encoded secret key in the input field. This is the secret you get when setting up 2FA on a website (usually shown as a QR code or text). The tool will immediately generate a 6-digit code that refreshes every 30 seconds. A progress bar shows remaining time. Copy the code and use it for authentication.
Where to Find Your Secret Key
When enabling 2FA on a service, choose 'can't scan QR code' or similar option to reveal the secret key as text. It's typically a 16-32 character Base32 string. Store this key safely - it's your backup if you lose access to your authenticator app.
▶Is this tool secure?
▶Why does the code change every 30 seconds?
▶What is Base32 encoding?
▶Can I use this instead of Google Authenticator?
▶What if I lose my secret key?
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