tmux is a terminal multiplexer
Simple C compiler
Free 32/64/16-bit multi-platform Pascal and Object Pascal compiler
A free COBOL compiler
A BASIC interpreter and compiler with graphics.
(X)BNF simple and clever translation grammar compiler
OS X crash report symbolicator
ACPI Machine Language IDE for OS X
A GHC-based Haskell to JavaScript compiler
An experimental BASIC language for Linux, Mac OS X, and Windows.
Converts (packages) Python programs into stand-alone executables