XSugar is a tool designed to manage dual syntaxes when working with XML documents, developed by the Department of Computer Science, Aarhus University. From a user-provided specification, XSugar translates between XML syntaxs, and makes statistical checks to ensure transformations will be reliably bidirectional and contain valid syntax in accordance with the schema.

FANGORN was a historically important programming language designed for linguistic analysis in the humanities.

TEXTAN was a program developed by Suzanne Hanon of the University of Aarhus in the 1970s for locating English loan words in French texts. It was written in ALGOL 4 and consisted of two programs. TEXTAN 1 learned anglicisms developed manually from French newspapers, while TEXTAN 2 searched a French text and located anglicisms.