Fast & Secure 2FA Authentication Codes

Generate two-factor authentication codes instantly. Like Authy or Google Authenticator, but in your browser.

2FA Code Generator

Your Saved 2FA Codes

Enter your 2FA secret keys below, one per line. We'll generate verification codes for all of them.

Your saved 2FA secret keys are securely stored in your browser's local storage. They will be automatically updated when codes change.

Saved data is stored locally in your browser. If local storage is cleared or the browser data is lost, your saved secrets will also be lost.

No saved secrets yet

Your shared 2FA codes are listed here. Each shared code includes a countdown timer showing the validity period.

No shared secrets available

Maximum Security

Client-side security like Authy. Your secret keys never leave your device - all processing happens in your browser.

Works Everywhere

No app install needed. Compatible with any service using standard TOTP authentication like Google, GitHub, Amazon, and more.

Save & Organize

Securely save your 2FA secrets locally with custom labels. Easily manage, edit, and access your commonly used authentication codes.

Live Updates

2FA codes refresh automatically with a visual countdown timer. No need to refresh the page or regenerate manually.

Privacy First

Enhanced privacy protection with secret blurring feature. Click to reveal sensitive information only when you need it.

Export & Backup

Download your codes with one click or copy to clipboard. Keep a secure backup of your 2FA secrets when you need them.

About Twofa.net

Twofa.net provides a browser-based alternative to authenticator apps like Authy and Google Authenticator. Our mission is to offer a secure, fast, and accessible 2FA solution that works on any device without installation.

We prioritize security and privacy with client-side code generation - your secret keys never leave your browser or get stored on external servers. Twofa helps you enhance your online security with standard TOTP (Time-based One-Time Password) codes.

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