Filebase

Transmission for Mac is a free and easy-to-use BitTorrent client software that is focused on enabling even novice users to enter into the world of Torrents without any need to invest time in learning how to configure client.

iZip is a simple to use, the effective and powerful utility built from the ground up for Mac users like you! With the latest in compression and encryption technology built right in, iZip for Mac allows you to compress, secure and share your files with ease.

RAR Expander is a lightweight and open source Mac app distributed under GPL license for extracting files from RAR archives. Although there are many alternatives for unarchiving files, RAR Expander enables you to also work with multi-part archives and password-protected RAR files.

BetterZip is a fully-featured and user-friendly macOS application that provides the required tools to compress files and folders, edit existing archives, preview their content and password protect sensitive data. From BetterZip’s main window you can have quick and easy access to various tools that can help you save an archive, add files or folders to it, delete documents, preview files, extract data, clean and test archives with just a few clicks of a mouse button.

Based on the p7zip port of the 7-zip open source project, the Keka macOS application offers you the possibility to quickly create file archives (7z, ISO, DMG, TAR, ZIP, Bzip2, or Gzip) that have a high compression ratio.

Tor Browser for Mac is a privacy-focused web browser that automatically routes users' web traffic through the secure network, providing anonymity and protection from user-monitoring services installed by internet providers, government agencies, and various online destinations. It is designed to prevent tracking, surveillance, traffic analysis, and censorship, making it an ideal choice for users who prioritize online anonymity and privacy.

By far the most popular open-source browser, Firefox has attempted, since it was first developed, to counter the dominance of Internet Explorer, then Chrome, and now the multitude of Chromium-based browsers as well.