Open Two-Factor Authenticator

An open-source two-factor Time-based One-Time Password (TOTP) authenticator with SHA-256 secure storage

Open Two-Factor Authenticator is available to install from Chrome Web Store and for download from this page. It has 10,000+ active users The latest version is 0.3.3, and it was published 15 days ago.

Install from Chrome Web Store

View source code

Total download count: 16 (Only count downloads from Chrome-Stats)

All available versions

You can find the current and older versions of Open Two-Factor Authenticator here. You can download the archived versions or inspect their source codes.

As a free user, you can only download the latest version.

Upgrade to download older versions

5 versions available for download.

Install CRX file

Option 1: The easy way (for Windows users only)

Download and run chrome-stats.exe file on your PC. This method will allow you to install Chrome extensions directly from chrome-stats.com in one click. You only need to do this once!
Type in chrome://restart in the URL bar to restart the browser for the changes to take effect.
Download and install the Open Two-Factor Authenticator CRX file

Option 2: Advanced method

Download Open Two-Factor Authenticator CRX file
NOTE: Sometimes the browser may block downloading / installing CRX file from outside the Chrome Web Store. If so, you may need to use option 1, or download the ZIP file instead.
In the URL bar, go to chrome://extensions
Enable Developer mode
Drag and drop the downloaded Open Two-Factor Authenticator CRX file into the Extensions page
When prompted, click Add extension to install Open Two-Factor Authenticator.

Install ZIP file

Download and unpack the Open Two-Factor Authenticator ZIP file to a directory of your choice.
In Chrome browser, go to chrome://extensions
Enable Developer mode.
Click on the Load Unpacked button.
Select the directory of with the unpacked Open Two-Factor Authenticator ZIP file from step 1. Open Two-Factor Authenticator is now installed on your browser.