2FA Code Generator
Generate TOTP 2FA codes locally from a shared secret. Nothing leaves your browser.
Shared secret (Base32)
Current code
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Your secret never leaves your device. Codes are computed with your local clock in this browser.
What is TOTP?
TOTP uses a shared secret and your clock to compute one-time codes. Common for Google Authenticator, 1Password, and Authy.
Offline & private
Everything runs in-browser: secrets are never sent anywhere. Keep your secret safe and back up your recovery codes.
Clock matters
Codes depend on accurate time. If you see mismatches, sync your system clock. Default period is 30 seconds.