RapidQ (also known as Rapid-Q) is a free, cross-platform, semi-object-oriented dialect of the BASIC programming language.
The integrated development environment includes a drag-and-drop form designer, syntax highlighting, and single-button compilation.
The ability to call external shared libraries is available, thus giving full access to the underlying operating system's application program interface.
RapidQ's author, William Yu, sold the source code to REAL Software, the makers of REALbasic, in 2000.
The freely distributed program has been improved and many additional components have been created by an active user group.