Oracle VM VirtualBox is an open source and cross-platform virtualization utility that makes it possible to extend your computer's capabilities so that it can be used to run a large number of operating systems (inside multiple virtual machines), using the same hardware you use for your daily tasks.

Clean up your Mac and optimize its performance. Speed up a slow Mac, free up disk space, remove junk files, prevent the “Startup Disk Full” error.

For more than 20 years, Little Snitch has been keeping a watchful eye on your privacy, letting you know whenever an app wants to connect to the Internet. It has become the number one Network Monitor and Personal Application Firewall for the Mac. The Little Snitch Network Monitor shows you where your Mac connects to on the Internet. You decide what you want to allow or deny.