whatmask is described as 'Whatmask is a small C program that will help you with network settings and subnet calculations'. There are three alternatives to whatmask for Windows and Linux. The best alternative is ship.sh, which is both free and Open Source. Other great apps like whatmask are LanCalculator (Free) and Advanced IP Address Calculator (Free).
- 3 alternatives
- Advanced IP Address Calculator (Free) - Easy-to-use IP subnet calculator that lets you to calculate every aspect of your subnet configuration in a few mouse clicks! View 10 alternatives to Advanced IP Address Calculator
No stated support for recent Windows 10. Product appears to be quite old.
- Free • Proprietary