SUMMARY: A Unicode typesetting system based on TeX
DETAILS: XeTeX is a typesetting system based on a merger of Donald Knuth's TeX system with Unicode and modern font technologies and is still in the experimental stage of its development.
XeTeX is a command-line tool, like standard TeX and pdfTeX processors. It is most commonly used via a graphical environment such as TeXShop (Mac OS X), KILE (Linux), WinEDT (Windows), or others.
ELAN is a professional tool for the creation of complex annotations(e.g. sentence, word or gloss, comment, or translation) on video and audio resources.
Glossinator provides a quick and easy way to look at the lexemes and the glosses that are entered in the Paratext interlinearizer. It functions as a companion to Paratext.