Transmit is an excellent FTP (file transfer protocol), SFTP, S3 (Amazon.com file hosting) and iDisk/WebDAV client that allows you to upload, download, and delete files over the internet. With the most Mac-like interface available, Transmit makes FTP as simple, fun, and easy as it can possibly be.

A simple download manager that offers you the possibility to quickly save videos from different websites to your own disk drive.

Access cloud storage just like a USB drive.

The most advanced dual pane file manager and file transfer client for macOS.

Write, preview, publish, and archive your blog from a Mac.

Automatically downloads complete Web sites.

Save time by adding powerful spam filtering to the e-mail client on your Mac.

Cyberduck is a libre server and cloud storage browser for Mac and Windows with support for FTP, SFTP, WebDAV, Amazon S3, OpenStack Swift, Backblaze B2, Microsoft Azure & OneDrive, Google Drive and Dropbox.

Backup software with cross-platform file synchronization.

Send messages and make free Viber calls.

WiFi Signal lets you monitor your Wi-Fi network’s status and signal quality, notifying you about changes in your Wi-Fi connection.

The best way to use Gmail on your Mac.

FileZilla is a fast and reliable FTP client and server with lots of useful features and an intuitive interface.

 Tunnelblick is a free, open source graphic user interface for OpenVPN on macOS. It provides easy control of OpenVPN client and/or server connections.

WhatRoute is a network diagnostic utility designed for Apple Macintosh computers. Primarily it provides a Traceroute function, but can also perform Ping, Domain Name Service queries, Whois queries and monitor the traffic to and from your computer. The software also uses a Geo-Location service to provide a geographical view of the paths that packets from your computer take as they traverse the Internet.