German AI company in Cologne providing neural machine translation and an AI writing assistant (DeepL Write).

DeepL is a German AI company headquartered in Cologne. Founded in 2017 as a spin-off of the Linguee dictionary project, it builds neural translation and language tools.

Its core product translates text and documents across dozens of languages and is widely cited as more fluent than many competitors for numerous language pairs. DeepL Write, an AI writing assistant, positions it as a European alternative to English-language AI writing tools.

DeepL runs both a free consumer product and a paid API/enterprise tier, and is regularly cited in EU discussions about reducing reliance on US-based AI infrastructure.