FileZilla is a powerful FTP-client. It has been designed for ease of use and with support for as many features as possible, while still being fast and reliable.Bundleware
Be aware that installing FileZilla on your computer might install some bundleware/malware on your machine. See this thread on the FileZilla forum: https://forum.filezilla-project.org/viewtopic.php?f=2&t=48441
FileZilla vs Cyberduck opinions
FileZilla is only an FTP client, Cyberduck can access cloud storage like S3 too.
FileZilla doesn't support S3, Onerive, etc
Filezilla is more stable than Cyberduck.
Only Filezilla PRO supports GoogleDrive, Dropbox, OneDrive, etc. not open-source Filezilla. Filezilla Pro is commercial not free app.
Rclone ("rsync for cloud storage") is a command-line program to sync files and directories to and from different cloud storage providers.
ForkLift is designed to be the fastest, most powerful file manager for the Mac. Connect to FTP or SFTP servers, manage your Amazon S3 account or your mobile devices over Bluetooth. All these features are beautifully integrated into a sophisticated, yet easy to use Cocoa based...
Air Explorer is an application that manages easily all your files in cloud servers (Google Drive, OneDrive, Dropbox, Mega, Box, Mediafire, WebDAV, Copy, Yandex,...) and FTP and SFTP services.
Unify all your storage. odrive makes it easy to access, sync, and share all your files from one place. Integrations to 20+ services, desktop sync, CLI (inc. Linux), placeholders, zero-knowledge-encryption, web client, advanced sharing, and more.
odrive vs Cyberduck opinions
Mountain Duck lets you mount server and cloud storage as a disk in Finder on macOS and the File Explorer on Windows. Open remote files with any application and work like on a local volume.
The gold standard of macOS file transfer apps just drove into the future. Transmit 5 is here. Upload, download, and manage files on tons of servers with an easy, familiar, and powerful UI. It’s quite good.
Transmit vs Cyberduck opinions
Cyberduck a very good FTP/SFTP client for macOS and Windows, but Transmit has a cleaner and more modern interface and offers more features, so if you're willing to spend a few bucks in a good software, definitely buy Transmit and you won't regret it.
Insync is a Google Drive sync and backup client with multiple account support.
Insync vs Cyberduck opinions
Insync syncs GD folders to your disk, while CYberduck mounts them "on the fly"
Does not mounts on-the-fly
Commander One is dual-pane file manager for OS X created in Swift, which enables you to manage your files in the best possible way.