2FA Authenticator is an elegant and open source Two Factor Authentication app. It supports Time-based One-time Password (TOTP) Algorithm.

2FA Authenticator supports multiple ways to easily setup accounts:
- Scan QR Code
- Read from QR Code image
- Import from file
- Manual entry

2FA Authenticator has a very nice "Account detail" page to show every account with its QR Code, you can check or copy these info in any time.

2FA Authenticator also provides several convenient ways to export all your accounts:
- Export Key URIs to Clipboard
- Export Key URIs as plain text
- Export Key URIs as a TXT file
- Export Key URIs as QR Code images

2FA Authenticator will always be off the grid, would never connects to the networks.
No data trackings, no personal infomation cellections, just works as it should be.

2FA Authenticator is fully open source on GitHub:
https://github.com/ososoio/authenticator