Free Online 2FA Code Generator
Enter your 2FA secret key and get a live TOTP code in seconds. Our 2FA authenticator is free, secure, and runs entirely in your browser — no app download, no signup needed. Works with Google Authenticator, Microsoft Authenticator, Authy, and any TOTP-based service.
Found in your service's security settings when enabling two-factor authentication
What Is Two-Factor Authentication (2FA)?
Two-Factor Authentication (2FA) requires users to verify their identity in two ways before accessing an account. Even if your password is stolen, 2FA auth keeps your account protected by demanding a second factor — typically a live code from a 2FA authenticator.
Enhanced Account Security
Even if your password is leaked, attackers can't access your account without passing the second 2FA verification step.
Live Code Every 30 Seconds
TOTP codes refresh automatically, so every login uses a unique 2fa live code that's impossible to reuse.
Works Completely Offline
Your 2FA codes are generated locally on your device — no internet connection required, available anytime.
How TOTP Works
TOTP (Time-based One-Time Password) is the most widely used 2FA implementation. It generates a one-time code from a shared secret key and the current timestamp. Both your device and the server independently calculate the same code, making 2FA auth reliable and phishing-resistant. Since each 2fa live code expires in 30 seconds, an intercepted code is virtually useless to an attacker.
How to Use Try2FA
Get your first live 2FA code in under a minute — no app download or account needed.
Get Your 2FA Secret Key
Go to the security settings of the service you want to protect — Google, GitHub, Discord, etc. — and enable two-factor authentication. The service will show a 2FA secret key or a QR code.
Paste the Key Above
Copy the Base32 secret key (a combination of uppercase letters and digits 2–7) and paste it into the input field above. This connects our 2fa authenticator to your account.
Copy Your Live Code
A 6-digit 2fa live code is generated instantly. Click the copy button to copy it to your clipboard, then enter it in the service to complete 2FA verification.
Use It Before It Expires
Each 2FA code is valid for 30 seconds. Enter it before the timer resets — the progress bar at the top of the code card shows exactly how much time remains.
Privacy note: Your secret key is processed entirely in your browser and never sent to any server. Always keep a secure offline backup of your 2FA secret key.
Frequently Asked Questions
Everything you need to know about Try2FA and two-factor authentication