F# (programming language) is described as 'Functional-first, open-source language for .NET, supporting static typing, succinct syntax, advanced pattern matching, object-oriented and asynchronous programming' and is a programming language in the development category. There are more than 50 alternatives to F# (programming language) for a variety of platforms, including Windows, Linux, Mac, BSD and Web-based apps. The best F# (programming language) alternative is Python, which is both free and Open Source. Other great apps like F# (programming language) are JavaScript, Java, Rust and C++.