This paper presents the particular use of “Jibiki” (Papillon’s web server development platform) for the LexALP1 project. LexALP’s goal is to harmonise the terminology on spatial planning and sustainable development used within the Alpine Convention2 , so that the member states are able to cooperate and communicate efficiently in the four official languages (French, German, Italian and Slovene). To this purpose, LexALP uses the Jibiki platform to build a term bank for the contrastive analysis of the specialised terminology used in six different national legal systems and four different languages. .