Little Snitch 6.0

The Little Snitch Network Monitor shows you where your Mac connects to on the Internet. You decide what you want to allow or deny.

I am not sure if it's really needed but Little Snitch works very reliably for me and looks great 😎. There is even a new major upgrade with lots of new features, e.g. DNS encryption and Blocklists, available.

www.obdev.at/en/products/littlesnitch