OpenDJ software stores data in UTF-8 format. It enables you to store and to search for attribute values according to a variety of language specific locales. OpenDJ software is also itself localized for a smaller variety of languages.

Languages OpenDJ software has been localized in the following languages. French German Japanese Simplified Chinese Spanish Certain messages have also been translated into Catalan, Korean, Polish, and Traditional Chinese. Some error messages including messages labeled ERROR are provided only in English.