About Secret2OTP by QuangTB
A free, secure, and easy-to-use two-factor authentication code generator
What is Secret2OTP?
Secret2OTP by QuangTB is a modern web application that helps you generate two-factor authentication (2FA/TOTP) codes securely and conveniently. The app works entirely in your browser, requires no installation, and doesn't require account registration.
With an intuitive and modern interface, Application helps you manage multiple 2FA accounts easily, with codes automatically refreshed every 30 seconds according to the TOTP standard.
Absolutely Secure
No backend server, all data is processed locally on your device. Secret keys never leave your browser.
Fast & Smooth
Auto-refresh codes every second with visual progress bar. No lag, no waiting, instant smooth experience.
Responsive Design
Works perfectly on all devices - desktop, tablet, or smartphone. Interface automatically adapts to all screen sizes.
Offline First
After the initial load, the app works completely offline. No internet needed to generate authentication codes.
How to Use
- 1.Click the "Add Account" button to create a new code
- 2.Enter the secret key from the service requiring authentication (Google, Facebook, GitHub, etc.)
- 3.Name the code for easy identification (e.g., "Gmail", "GitHub")
- 4.The TOTP code will be automatically generated and refreshed every 30 seconds
- 5.Click on the code to copy and paste into the authentication form
Install as App
Secret2OTP can be installed as a native app on your mobile device or desktop for faster access and offline use.
On Mobile (iOS/Android):
- • Chrome/Android: Tap the menu (⋮) → "Install app" or look for the install banner
- • Safari/iOS: Tap Share → "Add to Home Screen"
- • The app will appear on your home screen and work offline
On Desktop:
- • Chrome: Click the install icon (↓) in the address bar, or use menu → "Install Secret2OTP"
- • Edge: Click the app icon (•••) in the address bar → "Install this site as an app"
- • The app will open in its own window, separate from your browser