Can anyone recommend a good free, drag-and-drop, easy-to-use, FTP client for Windows?

GFTP hasn't been in development for a while, but still stands as a solid FTP solution for the Linux desktop. GFTP features FTP, FTPS (control connection only), HTTP, HTTPS, SSH, and FSP protocols. It also features FTP and HTTP proxy server support, and bookmarks tools.

It supports FXP file transfer, UNIX, EPLF, Novell, MacOS, VMS, MVS, and NT (DOS) style directory listings. Though the development of gFTP seems to have stopped (latest stable release in 2008), the software still works on the latest releases of nearly every distribution (tested on Ubuntu 12.10 to make sure). Free FTP is all about simplicity.

From the interface to the features, with Free FTP you will be transferring files quickly and easily. Features include multiple server profiles, the ability to transfer files in binary, ASCII, or auto mode. Free FTP includes drag and drop support and an easy to use and unique bookmarks tool.

Free FTP works with Windows XP, Vista, 7, and 8. With the bookmarks tool you can not only save server information but local information - so transferring files from a specific directory to a specific server is as simple as selecting a bookmark and then dragging and dropping the files to be transferred. BareFTP is another Linux client that makes use of the Mono framework on the GNOME desktop environment.

BareFTP focuses on simplicity and supports transfers with the following protocols: FTP, FTP over SSL/TLS (FTPS), and SSH File Transfer Protocol (SFTP). Any level of user would be immediately at home with the BareFTP interface. Unlike gFTP, BareFTP is still in development (though the developer has been on a temporary hiatus due to other projects).

Because of the issues with Mono, BareFTP is being ported into a strict Python port. FireFTP is a unique FTP solution in that it is an addon for the Firefox browser. Because of this, it not only works across platforms, it also already works within a familiar environment.

FireFTP features: SSL/TLS/SFTP support, directory comparison, and support for nearly all encoding. It also features a search and filter system, integrity checks, drag and drop, remote editing, file hashing, proxy support, FXP support, timestamp synchronization, CHMOD and recursive CHMOD changes, and much more. FTP isn't going away anytime soon and for anyone looking for a solid FTP client, here are five free tools that should meet nearly any need.

Whether you're looking for a simple tool or one with plenty of features - you'll find what you're looking for here.