TFAC GUI is a 2FA (Two-Factor Authentication) token generator GUI.

It currently only supports 30 seconds for the token interval setting and the SHA-1, SHA-224 and SHA-256 hashing algorithms, but the standard 2FA setup is 30 seconds SHA-1 anyway, so yeah..

It's based on TFAC, an open-source TOTP library I wrote in C some time ago.

The GUI is written in plain C, using the awesome NAppGUI SDK. Huge shoutout to @frang75 for bringing this awesome piece of software to us!

Just copy and paste your 2FA secret into the GUI's text field and use the generated two-factor authentication code.

This GUI is licensed under the Apache-2.0 license, but the underlying NAppGUI library is MIT-licensed. The licenses and readme files are distinguished between this fork and the original NAppGUI like this:

• LICENSE.txt
• • This GUI's license (Apache-2.0).
• LICENSE.nappgui.txt
• • The underlying library's license (MIT)
• README.md
• • This readme file.
• README.nappgui.md
• • The original NAppGUI SDK's README.md

It's also available for purchase on glitchedpolygons.com (ships with some cool, additional stuff, PDF files/manual, etc...).

Please consider buying it from there to support the development of nifty tools like this :)