Some languages make extensive use of Latin characters with multiple diacritical marks. This is the case in for example Vietnamese and Yukon languages (Tagish, Kaska, etc). Showing such characters on computer screens presents problems to some operating systems. Multiple marks that are positioned above a character need to be stacked on top of each other. Some operating systems fail to do so and will let these marks overlap each other, or space them out next to each other, instead.

GlyphGate has been developed to address these problems on many different levels. These levels include support for entering diacritical marks on platforms without suitable keyboards, rendering text with fonts, and positioning diacritical marks appropriately.