I need an FTP client for Windows
- Graphical and user-friendly
- Feels like a Windows Explorer window, supports drag and drop
- No nags/ads/spyware
- Open source
- Supports FTPS, SFTP, and all modern authentication mechanisms
- Well-maintained. While FTP is not bleeding-edge, I want to avoid programs that has not received a single commit in more than 6 months. The most recent commits the better.