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.
HTTPie - CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.
DPLOY - An FTP/SFTP deployment tool built in node.js
Yummy FTP Pro - Pro-level, fast, reliable FTP/S + SFTP + WebDAV/S client.
Cloudu - Secure German online storage and file sync service. Apps for all major platforms.
Paw.cloud - Paw is a REST client for Mac.