TOTP Authenticator Code Generator
2FA codes in your browser
100% local — nothing is uploaded
Base32 secret
Digits
Period
HMAC
Output
Enter a secret to generate a code
How to use
- Paste the Base32 secret from your authenticator enrollment (or a QR decoder).
- Match the digits, period and algorithm to the service settings.
- Read the live code and countdown; it refreshes automatically.
FAQ
Where do I find the Base32 secret?
Most services show it next to the enrollment QR code. You can also decode a otpauth:// URI to extract the secret parameter.
Is my secret safe here?
Yes. Codes are computed locally in your browser; the secret never leaves your device.
Why is my code rejected?
Usually clock drift — resync your device time. Otherwise check the digits, period and algorithm settings.