Syncplify.me Server!
Syncplify.me Server! is the free FTP, FTPS, and SFTP server for Windows by Syncplify, Inc. Powerful, secure, yet very easy to configure, this software simplifies regulatory compliance and operation of a secure file transfer server. Its main features are: support for plain FTP, explicit FTPS (TLS), implicit FTPS (SSL/TLS), and SFTP file transfer protocols, basic secure shell (SSH-2) and forwarding tunnels support, runs as a system service, supports large files (> 4 GB). And it also has several useful advanced features like: PKI authentication with multiple key-pairs per user, advanced FTP(S) and SFTP security settings, configurable automatic blacklist, real-time monitor, virtual folders with per-folder security, IP-based and per-user security (white-lists), powerful event-handling subsystem, graphical Configuration Manager, command-line Interface (CLI) configuration tool. It is totally free, including lifetime updated and upgrades, for personal use.