Factor is described as 'The Factor programming language combines powerful language features with a full-featured library. The implementation is fully compiled for performance, while still supporting interactive development. Factor applications are portable between all common platforms' and is a programming language in the development category. There are more than 25 alternatives to Factor for a variety of platforms, including Linux, Windows, Mac, BSD and Web-based apps. The best Factor alternative is Python, which is both free and Open Source. Other great apps like Factor are Java, C (programming language), C++ and Lua.