Digital Mars

Digital Mars is an American computer software company founded by Walter Bright and based in Vienna, Virginia. It makes C, C++, and D compilers, and associated utilities such as an integrated development environment (IDE) for Windows and MS-DOS, which Digital Mars calls an integrated development and debugging environment (IDDE).

The compilers can be downloaded, free of charge, from Digital Mars's website. Product names changed over time. The C compiler was first named Datalight C compiler, then Zorland C, then Zortech C, then Digital Mars C/C++ compiler. The C++ compiler was first named Zortech C++, then Symantec C++, then Digital Mars C++ (DMC++).

The company gained notice in the software development community for creating the D programming language. D resulted from Bright's frustration with the direction of the C++ language and from his experience implementing it. Digital Mars is also notable for having shipped the first commercial C++ compiler for Windows.

In 2002, Digital Mars released DMDScript, an ECMA-262-compliant JavaScript engine, written in D.