FreeBASIC is a multiplatform, free/open source (GPL) BASIC compiler for Microsoft Windows, protected-mode MS-DOS (DOS extender), Linux, FreeBSD and Xbox.
License: Open Source
F# is a multi-paradigm programming language with strong functional programming capabilities, tightly integrated with the .NET ecosystem, making it ideal for complex applications. In contrast, FreeBASIC is a simpler, procedural language that is easy to learn, making it great for beginners and small-scale projects.