2fast (acronym for “two factor authenticator supporting TOTP”) is a free, open source two factor authenticator (currently for Windows), with the ability to store sensitive two factor authentication accounts encrypted in a location of your choice, rather than in a third party cloud.

Features

• Every data is stored in one single encrypted file
    - Encrypted with AES using a password-based key by PBKDF2
    - Possibility to send the data file to your colleges and friends to securely share logins
    - Easy backup & restore in one single file

• Everything works local
    - No extra account, registration or login needed
    - No Internet connection needed. However, there is the possibility to add a personal WebDAV server (e.g. ownCloud or Nextcloud) as storage location [currently work in progress]

• Free

• Open Source

• Works on multiple platforms
    
• Currently released for Windows 10+ (UWP)
    - under development (with UNO platform):
       -Android
       -iOS
       -Linux
       -macOS

• Uses the widely accepted TOTP algorithm (RFC 6238)
    -Works with accounts from Google, Microsoft, Facebook, PayPal, etc.

The app logo has been sourced from freepik @flaticon: https://www.flaticon.com/de/kostenloses-icon/schlussel_2786386?related_item_id=2786386