vsftpd!

FileZilla Server, sister product to FileZilla Client, is an FTP server that supports FTP and FTP over SSL/TLS. FTP over SSL/TLS provides secure encrypted connections to the server.

FireFTP is a free, secure, cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers.

Internet Information Services (IIS) for Windows® Server is a flexible, secure and easy-to-manage Web server for hosting anything on the Web. From media streaming to web application hosting, IIS’s scalable and open architecture is ready to handle the most demanding tasks.

ProFTPD is a high-performance, extremely configurable, and most of all a secure FTP server, featuring Apache-like configuration and blazing performance.

Yummy FTP Pro is an FTP/S + SFTP + WebDAV/S file transfer client which focuses on speed, reliability and productivity.

Cute FTP is an utility for transferring files between your computer and a remote File Transfer Protocol (FTP) server anywhere on the Internet.

Pure-FTPd is a free (BSD), secure, production-quality and standard-conformant FTP server. It doesn't provide useless bells and whistles, but focuses on efficiency and ease of use. It provides simple answers to common needs, plus unique useful features for personal users as well as hosting providers.

Single executable that does several useful activities, for example starting a FTP server via command line with user, password, port number, working directory and read or read and write permissions.

Staff-FTP is a Freeware FTP-Client that has many unique features you will not find in any other software.

Gene6 FTP Server is an advanced FTP server software for Windows developed specifically for security and high performance requirements. Gene6 FTP Server is a professional Windows FTP Server featuring speed, reliability and customization. Its main assets are remote administration, encrypted (SSL 128 bits) connection, and ease of use. Its fast performances allow it to run heavily loaded files servers worldwide but this does not make it out of range of smaller companies who will find in it a customizable, trustable and easy to administer FTP server at an affordable price. »

Serv-U is the FTP server that is both secure and easy to use. Sharing files through the Internet is a smooth process with the industrys most popular FTP server. The clear and comprehensible interface makes easy work of all your file sharing and management, and the SSL connections between Serv-U and your secure FTP clients will ensure that your data is encrypted.

Free FTP is a simplified, intuitive, and best of all free FTP client! It uploads and downloads files quickly and reliably, keeps your FTP server settings in one place, and allows you to pause or cancel transfers. Make CoffeeCup Free FTP your choice for a no-cost, highly effective tool to complement your Webmaster suite.

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. »

Useful and reliable Mac FTP client. Viper FTP is a handy and powerful file manager for macOS, with a tremendous user interface that makes it effortless to use.

Secure FTP client for Windows. Includes scheduler, sync and backup utilities. FTP, SFTP (SSH) and FTPS (SSL). Native 64-bit app, uses ribbon interface like Microsoft Office. Includes CLI and integrates with local editors. Supports server side file integrity checking via the XCRC file hash algorithm.