OSRM - Utilities, Application Utilities, and Mapping APIs
TinyWall - Lightweight and non-intrusive firewall
OpenRouteService.org - The spatial services API with plenty of features.
GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...
Vyatta - Vyatta is a software-based virtual router that includes routing services as well as firewall and VPS services for internet protocols, including IPv4 and IPv6.
Windows Firewall Control - Windows Firewall Control is not the built in firewall system in the Windows operating systems.