Secure, Fast, and Private Two-Factor Authentication for your Browser
Fast 2FA is a lightweight and secure extension that generates Time-Based One-Time Passwords (TOTP) directly in your browser. Designed for speed and privacy, it keeps your 2FA codes accessible without needing to reach for your phone.
All your 2FA secrets are encrypted with a master password that only you know. Your data never leaves your browser unencrypted.
Quickly generate codes for your accounts with a simple popup interface. No delays, no hassle — just instant verification codes when you need them.
Seamlessly migrate from other 2FA apps. Supports importing .2fas backup files, fully compatible with the popular 2FAS mobile app.
Click "Copy" to instantly grab your code and paste it into your login form. Fast, simple, and seamless authentication flow.
Configure your session to stay unlocked for a specific time, balancing convenience and security. The vault locks automatically to keep your secrets safe.
Automatically respects your system's dark mode preference. A comfortable viewing experience no matter your setup.
On first launch, create a strong password to encrypt your vault and protect all your secrets
Use the "Import" feature to load your accounts from a .2fas backup file from the 2FAS mobile app
Select a service from the dropdown to see your current verification code, ready to use
The app automatically locks when you restart the browser, or let it remember your session for a set number of minutes
Fast 2FA is built with privacy as its core principle. It operates entirely offline within your browser — your secrets never leave your device.
Your secrets are stored locally in your browser's encrypted storage. Nothing is ever sent to the cloud.
We do not track your usage or collect any personal data. Zero telemetry, zero tracking.
The extension does not communicate with any external servers. Everything runs locally.
Transparent and auditable code. You can verify exactly what the extension does.
Stop reaching for your phone every time you need a verification code. Fast 2FA brings secure, instant 2FA right into your browser.