Open Two-Factor Authenticator
Open Two-Factor Authenticator - Secure TOTP Chrome Extension
Extension stats
- storage
- notifications
Ranking
Other platforms
Extension summary
Open Two-Factor Authenticator aims to provide an open-source two-factor authentication to browsers and Android devices with synced storage.
By using this extension, you can have your encrypted keys stored in the browser's synced storage. This allows you to sync them across multiple devices. This extension uses the public key/private key method to encrypt stored data (SHA-256).
Currently, Open Two-Factor Authenticator supports Firefox on Desktop, Firefox on Android, Chrome, Edge, and Opera browsers. Standalone Android implantation is still in progress.
Features:
- Stores secrets securely using AES-CBC encryption.
- Does not store passwords
- Does not have any server-side activities whatsoever
- Uses synced storage, so secrets are securely shared between multiple devices.
- Supports custom number of digits and custom validation period
User reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated.- Works well for two-factor authentication
- No option to copy the code directly
- Issues with unwanted spaces when pasting codes
- Old version was preferred by some users
- Difficult to get the extension to work for some users
- No option to copy the code directly
- Old version was better
- Unwanted spaces when pasting codes
User reviews
Each Key, 2024-11-29 
Darrick Ng, 2024-03-25 
John Weiss, 2021-04-29Extension safety
Risk impact
Open Two-Factor Authenticator requires very minimum permissions.
Risk likelihood
Open Two-Factor Authenticator has earned a fairly good reputation and likely can be trusted.
Promo images
Similar extensions
Here are some Chrome extensions that are similar to Open Two-Factor Authenticator:
3.78
3.30
3.00
4.33
3.36
3.60
N/A
3.67
2.14
5.00
N/A
5.00