Description: Molcomp is (or, at least it should become) a featured molecular weight and chemical composition calculator
Platform: Molcomp runs in a command-line interface on Linux, Windows and DOS operating systems. There is also a CGI version of MolComp wich runs on Linux and Windows (starting with the 0.2 release) and was tested on these platforms using Apache web server.
MolComp is Open Source Software release under the terms of the GNU License. It is written in Free Pascal. To recompile and/or to improve the code you'll need the Free Pascal Compiler (fpc).