You should find it as a compressed ZIP file in the Downloads folder on your Mac. Start by downloading the latest release of MiddleClick from Github. But again, it’s free, and that’s what counts. MiddleClick also requires you to spend a bit of time setting things up. However, MiddleClick restricts you to a three-fingered click or tap, unlike the other apps on this list, all of which offer lots of customization options to tailor how you want the middle-click gesture to work. It’s also compatible with the Magic Mouse, as long as you don’t mind tapping instead of clicking.
MiddleClick is a free, open-source app that adds middle-click support to the Magic Trackpad and MacBook trackpad. One of them-Magic Utilities-also allows you to middle-click with Apple’s pointing devices on Windows. We found several utilities that offer middle-click support for the Magic Trackpad, Magic Mouse, and the MacBook’s built-in trackpad.