We propose a tool for the semi-automatic production of terminological databases, divided in the steps of corpus processing, terminology extraction, database population and management. With this tool it is possible to obtain a draft macrostructure (a lemma-list) and data for the microstructural level, such as grammatical (morphosyntactic patterns, gender, formation process) and semantic information (hypernyms, equivalence in another language, definitions and synonyms). In this paper we offer an overall description of the software and an evaluation of its performance, for which we used a linguistics corpus in English and Spanish.