Welcome to the tmt (Text Manipulation Tools) home page. Here are links to the three main components of the tmt package (all of these tools are for UNIX or its clones unless noted): lexgen has its own web page-- but if you just wanted to download it, you can do that here. Now rewritten in C because the Perl version was awful! lexalt is a tool for linguists, and others who might be curious, to perform sound changes (and quite possibly other changes) on a list of words. Download lexalt here. If you run Windows, then you probably don't have Perl installed. Get a Windows EXE version of lexalt here. sigma is a program for summing up columns of numbers, kind of like a spreadsheet, only with more bugs and not as useful. Download sigma here.