FTP

WinSCP - SFTP, WebDAV, SCP and FTP client for Windows.

RealFTP - a Real FREE FTP Client also Supports SFTP & FTPS

FileZilla User Guide

FealFTP - a Real FREE FTP Client also Supports SFTP & FTPS

File Convert

SFTP Bridge Lite

FileUtilities

FileZilla Guide (SFTP, FTP, WebDAV, SCP, S3 client)

Private FTP Server

SimplyFiles