simplewall – tool to configure Windows Filtering Platform (WFP) which can configure network activity on your computer.
The lightweight application is less than a megabyte, and it is compatible with Windows Vista and higher operating systems. You can download either the installer or portable version. For correct working, need administrator rights.
+ Simple interface without annoying pop ups
+ Dropped packets notifications (Windows 7 and above)
+ Proxy support (Windows 8 and above) [BETA]
+ Internal blocklist (block Windows spy / telemetry)
+ Rules editor (create your own rules)
+ Free and open source
+ Localization support
+ IPv6 support
git clone https://github.com/henrypp/simplewall && cd simplewall
right click simplewall.sln, open with Visual Studio