2FA Code Generator
Generate live 6-digit two-factor codes from your secret key.
About 2FA Code Generator
Generate live 6-digit two-factor authentication codes from your secret key with our free TOTP 2FA code generator. Paste the secret from any service and get rotating codes that refresh every 30 seconds — just like an authenticator app, right in your browser.
Useful when your phone is unavailable or you manage many accounts from a desktop. Codes are computed locally with the standard TOTP algorithm, so your secret key never leaves your device.
2FA Code Generator — FAQs
What is a TOTP 2FA code?
TOTP (Time-based One-Time Password) is the 6-digit code system behind Google Authenticator and similar apps. Both sides share a secret key and independently compute the same code from the current time.
How do I use the 2FA generator?
Copy the secret key shown by the service when you enable 2FA, paste it into the tool, and it displays the current 6-digit code plus a countdown to the next one.
Is my secret key safe here?
Yes. Codes are generated entirely in your browser — your secret is never uploaded, stored or transmitted anywhere. For best security, only use this on your own trusted device.
Why do I need HTTPS for this tool?
TOTP needs the browser cryptographic API, which only works on secure (HTTPS) connections, and accurate device time so codes match the server.
