Top Alternatives to FileZilla

Total Commander is a Windows based file management program with the good plugin system.

WinSCP is a free and open-source SFTP, FTP, WebDAV and SCP client for Microsoft Windows.

Cyberduck is an open source client for FTP and SFTP, WebDAV, and cloud storage.

Nautilus a next-generation file manager for GNOME, akin to KDE's Konqueror.

Midnight Commander is a visual file manager, licensed under GNU General Public License and therefore qualifies as Free Software.

Transmit is an FTP client for OS X. Developed by Panic, Transmit is shareware.

FireFTP is a free, open-source, cross-platform FTP client for Mozilla Firefox in the form of an add-on.

ForkLift is a file transfer software, It allows you to transfer files using FTP, SFTP, FXP, WebDAV, Amazon S3 and even Bluetooth.

RaiDrive is a cloud file manager that supports Google Drive, Box, etc

Multi Commander is a multi-tabbed file manager and is an alternative to the standard Windows Explorer.

odrive is a Universal sync client to unify, sync, share, and encrypt all your files in Amazon Cloud Drive, Dropbox, Google Drive, OneDrive, Box, S3, WebDAV, FTP, etc.

CarotDAV is a Simple WebDAV / FTP / Online Storages client for Windows OS, available free of charge.

ExpanDrive is a distributed file system client for Mac OS X and Microsoft Windows that facilitates mapping of local volume to many different types of Cloud Storage.

Air Explorer is a software to manage all your multiple cloud drives (like Dropbox, Onedrive, Google Drive, Mega, Mediafire, Box, Hidrive, Yandex, Baidu, etc.

SmartFTP is a network file transfer program for Microsoft Windows that supports file transfer via FTP, FTPS, SFTP, WebDAV, Amazon S3, Google Drive, Microsoft OneDrive, Google Cloud Storage and Backblaze B2 protocols.

My Commander is a free multitab file manager for Windows.

CuteFTP is an FTP client software.

FTP Rush is a powerful and free FTP/FXP/SFTP/TFTP client software for Windows.

SSHFS (SSH Filesystem) is a filesystem client to mount and interact with directories and files located on a remote server or workstation over a normal ssh connection.

gFTP is a free/open source multithreaded File Transfer Protocol client program.

BitKinex integrates the functionality of an innovative FTP, SFTP and WebDAV client for Windows.

Flow is a fast, and reliable FTP + SFTP client.

lftp is a command-line file transfer program (FTP client) for UNIX and Unix-like systems.

FTPbox is an open-source application that allows you to synchronize your files to your own host, via FTP.

AnyClient is a platform independent file transfer client supporting all major file transfer protocols including FTP/S, SFTP, WebDAV/S, Amazon S3 and AFTP.