[djsumdog]

I don't run anything like this on my Linux box (just standard iptables), but I was looking for something like this for Windows a while back. The only thing I've really found is Windows 10 Firewall Control:

http://sphinx-soft.com/Vista/order.html

It's nowhere near as nice as Little Snitch, plus it doesn't block the socket call and then allow it after you acknowledge it. The call will fail and the app has to retry the connection.

Are there any better Windows solutions?

[atomicUpdate]

Glasswire looks pretty similar to this. I haven't tried the various paid versions, but even the free one shows a lot of useful stuff.

https://www.glasswire.com/

[orionblastar]

I use the free version on Windows 10. I haven't tried the paid version yet. I spend most of my time on Linux instead of Windows 10.

It tells you when an app is updated, and when an app is making an Internet connection, and you can shut them off from the Internet if you wished.

[Keyframe]

Tiny Wall https://tinywall.pados.hu/

[rasz_pl]

try Windows Firewall Control www.binisoft.org/wfc.php