FileZilla®

Not sure why, but for years now I get unreliable transfers when using this. Stopped using it about 3 years ago because of silently failed transfers, then used WinSCP, recently tried FileZilla again and boom, silently failed transfers again! Uploads all the files, everything looks normal, but when you run the files, all sorts of problems. Re-upload using another product, and everything works, ergo the files were not uploaded correctly by FileZilla. Back to WinSCP. Not sure if I have some setting wrong, but it should work out of the box.

The free version includes PUA.InstallCore according to dozens of virus-checking software programs. Not a virus, but stuff that none of us wants, nor agrees to having installed.

Installs "Avira" and 5 other programs under that name without an option to opt out.

When it works it's OK although the "the file changed do you want to transfer it" feature should be something that can be disabled easily. Similarly, choosing binary or ASCII transfers is too cumbersome if not using auto mode. All of which one would tolerate in a free product if it worked reliably. But it plain and simply doesn't. Especially for files larger than about 100M. Where other FTP clients breeze through, Filezilla just barfs. So overall this is not a product I would recommend.

FileZilla is a good FTP program if you like your user interface filled with a lot of buttons, windows, columns, options, etc. Does not support automatically saving modified files to the remote server. There are about 15-20 feature requests in trac for this, however a developer by the name of codesquid has unilaterally vetoed and rejected forks disallowing this feature from coming into the main branch. Uninstalled.