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
Nim is a modern programming language that offers advanced features such as metaprogramming, garbage collection, and strong concurrency support, making it suitable for high-performance applications. In contrast, FreeBASIC is a simpler language with a syntax similar to BASIC, making it ideal for beginners and smaller applications, but it lacks some of the advanced features and performance optimizations found in Nim.