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
Groovy is a dynamic language that integrates smoothly with Java, offering a more flexible syntax and powerful features for scripting and testing, while FreeBASIC is a straightforward, fast, and lightweight language that's easy for beginners and ideal for small projects. The choice between the two largely depends on the specific requirements of the project and the developer's familiarity with the languages.