免费在线 2FA 代码生成器
粘贴您的 TOTP 密钥并立即获取当前的 6 位验证码。 Dokall 支持每批次多个机密、可选标签、间隔的 Base32 机密和 otpauth:// URI。
代码每 30 秒自动刷新一次。所有处理都在您的浏览器本地进行 - 您的 2FA 秘密永远不会离开您的设备。
Frequently Asked Questions
What is TOTP?
TOTP (Time-based One-Time Password) generates 6-digit codes that change every 30 seconds. It is the standard behind Google Authenticator, Authy, and most 2FA apps. Codes are computed from a shared secret key and the current time.
Is it safe to paste my 2FA secret online?
Dokall processes secrets entirely in your browser - nothing is sent to a server. However, any website where you enter a 2FA secret is a risk if the site is compromised. Prefer your dedicated authenticator app for daily use. Use this tool for recovery or testing.
What is a base32 secret key?
Authenticator apps store a random secret encoded in Base32 (letters A-Z and digits 2-7). When you set up 2FA, the service shows this key as text or in a QR code. Dokall accepts the Base32 string directly or an otpauth:// URI.
Why does my code not match the app?
The most common cause is clock drift. TOTP depends on synchronized time. Ensure your device clock is accurate (enable automatic time sync). Also verify you pasted the complete secret with no extra spaces.
Can I generate codes for multiple accounts?
Yes. Add multiple secret keys with optional labels. Each generates its own 6-digit code that refreshes every 30 seconds. Useful for managing backup codes or testing multiple services.