Open Source C Interpreters

Agena is an easy-to-learn procedural programming language designed for science, scripting, and many other applications. Binaries are available for Windows, Linux, Solaris, OS/2, Mac OS X, Raspberry Pi and DOS.

X11-Basic is a dialect of the BASIC programming language with graphics capability that integrates features like shell scripting, cgi-Programming and full graphical visualisation into the easy to learn basic language on modern computers.

A Graphical Developement Environment based on a Basic Interpreter with object extensions.

SmallBASIC is a fast and easy to learn BASIC language interpreter ideal for everyday calculations, scripts and prototypes.

ScriptBasic is a mature Basic interpreter that can be used for server side CGI scripting, utility programming or to develop GUI desktop applications. A multi-threaded HTTP Basic application server is available as well with session support.

This is an Open Sourced BASIC interpreter environment using PostgreSQL. It is focused on (1) Simple to program, (2) Powerful database statements, (3) UNIX shell friendly, (4) Business focused, (5) "Function" over "speed". This is *not* another VB implementation. Extensive language documentation is available.

BASIC interpreter for the 16bit PIC microcontroller 24FJ64GA002. The interpreter runs on the chip only, no compiler/tokenizer is needed. Communication with PC is done by USB-to-serial converter cable.

Brandy is an interpreter for BBC Basic (or Basic V) that runs under a variety of operating systems. Basic V is the version of Basic supplied with desktop computers running RISC OS. These were originally made by Acorn Computers.

Mouseth is a cross between the Mouse and Forth programming languages. The programs are compiled to a very compact, machine independant bytecode, which can then be run on its extremely small virtual machine.

"The Engine" is a game creation engine with built-in classic type BASIC interpreter (as known from old 8-bit computers), screen editor and full-screen editor, using OpenGL and SDL (currently POSIX only, but portable, in principle). It is aimed at game developers with little spare time, and tries to reduce program size with powerful commands that takes as much coding effort off the shoulders of the developer as humanly possible. The BASIC interpreter supports only labels, not line numbers, and the program is written with the built-in editor. Interpreter and graphics engine run in parallel, in separate threads, and hence interpreter speed is not an issue. The interpreter is not chiefly designed for speed, but for comfortable development. The editor and command screen use a custom 8 x 8 font on a 64x16 character text display. There are currently three switchable screens: Game screen, Output/Command screen, and Editor screen.

A shell loosely based on the old Commodore and Tandy BASIC interpreters, with some small updating to modern computer systems

nbasic - bytecode compiler+vm for middle level programming language, like basic. nbs - small and fast C-coded object orientated basic (compiler+vm) for embeded applications. Purpose: scripting support for C/C++ project.

A tiny BASIC interpreter for memory-constrained systems.