2FA Code Generator – TOTP Authenticator Online
Get two-factor (2FA) codes from a secret key, an otpauth link or a QR code, and move accounts out of Google Authenticator. TOTP and HOTP, SHA-1/256/512. Nothing is stored or uploaded.
A free online authenticator for two-factor codes. Paste a secret key or an otpauth:// link, or scan a QR code from a screenshot, and the six-digit code refreshes every 30 seconds with a countdown and the next code. It reads Google Authenticator's export QR, so you can move all your accounts to another app, and shows a QR for each account to scan into the new app. Developers can check an implementation against TOTP (RFC 6238) and HOTP (RFC 4226) with SHA-1, SHA-256 or SHA-512, 6–8 digits and custom periods, or make a new test secret. Codes are computed with your browser's Web Crypto; secrets are never stored, logged or sent.