TOTP Authenticator - 2FA (Two-Step Verification Code)

Generate TOTP two-step verification code locally: scan the screen to recognize the code, right-click to fill in the code, batch…

Log in to the website on your computer; you no longer need to repeatedly pick up your phone to search for verification codes. TOTP Authenticator is a simple Chrome 2FA tool that generates and manages dynamic TOTP/HOTP CAPTCHAs within your browser. It supports scanning QR codes on web pages, manually adding keys, one-click copying, automatic website matching, and quick CAPTCHA filling. You can search and pin frequently used accounts, and migrate data from authenticators such as Google Authenticator, Microsoft Authenticator, Authy, 2FAS, and Aegis. The extension supports batch import and can export data as JSON, CSV, OTPAUTH text, QR code, PDF, or encrypted backup, making it convenient for switching devices and long-term storage. The CAPTCHA is generated locally, the core functionality does not require connection to a third-party server, and it does not include behavioral tracking code. The extension also provides password protection, automatic lockout, light and dark themes, and optional browser synchronization. This extension's code is open-source on GitHub, where users and developers can view the code, report issues, or suggest features. The extension is also featured on product discovery platforms such as Product Hunt (ranked #1 yearly), Zenodo (ranked #1 weekly), AlternativeTo, Uneed, and SaaSHub, and has passed Cure53 security testing. It has received over 50,000 stars on GitHub and has been cited in academic research by institutions such as MIT, Stanford, Oxford, Cambridge, Carnegie Mellon, UC Berkeley, and ETH Zurich. Related research has been indexed by authoritative publications such as ACM, IEEE, Springer Nature, and Elsevier, and is permanently archived by Zenodo and Software Heritage. Users are welcome to try it out and leave honest feedback. We will continue to improve image recognition, page compatibility, and batch download experience based on community feedback.