FileZilla - FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.
aria2 for Android - Port of aria2 for Android with builtin front-end (aria2-webui).
Transmit - Transmit is an FTP client for Mac OS X and Mac OS Classic (which is unsupported).
Forklift - The most advanced dual pane file manager and file transfer client for macOS.
Cyberduck - A libre FTP, SFTP, WebDAV, S3, Backblaze B2, Azure & OpenStack Swift browser.
HTTPie - CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.