Apertium is a free/open-source project for machine translation and natural language processing.
The Apertium project develops a free/open-source platform for machine translation and language technology. We try to focus our efforts on lesser-resourced and marginalised languages, but also work with more widely-spoken languages. The platform provides,
a language-independent machine translation engine
tools to manage the linguistic data necessary to build a machine translation system for a given language pair and
linguistic data for a growing number of language pairs.
It is being developed around the world, in universities and companies and by independent free-software developers. There are currently 42 published language pairs within the project (including a number of "firsts" — for example Aragonese—Spanish, Crimean Tatar—Turkish, Spanish—Occitan, Breton—French, Italian—Sardinian among others), and several more in development.
Primary Open Source License: GNU General Public License version 3.0 (GPL-3.0)