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Ever since the launch of DeepL Translator in August 2017, DeepL has been setting records for machine translation quality.

DeepL Pro, released in March of 2018, allows subscribers to unlock the full capacity of DeepL’s AI translation technology. DeepL Pro subscribers can benefit from an optimized web translator, integrate our algorithms into translation software, or build new apps and services with the DeepL API.

DeepL was founded by Jaroslaw Kutylowski and is operated by DeepL SE in Cologne, Germany. Download our company profile here.

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Photos of founder and CEO Jaroslaw Kutylowski

How do we compare to the competition?

DeepL’s networks consistently outperform other translation systems, making ours the world’s best translation machine. Try it out for yourself or read on to see a quantitative comparison of our system to others.

119 paragraphs from different domains were translated by the various systems. External professional translators were hired to review the translations - without information about which system produced which translation. The graph displays how often each system’s translations were rated better than all other translations. Not shown are cases where several systems produced the best translation. The tests were performed in January 2020.

The History of DeepL

April 2021

DeepL releases a mobile app for iPhone and iPad that allows users to easily access DeepL’s accurate translations on the go.

March 2021

DeepL Translator launches 13 new European languages: Bulgarian, Czech, Danish, Estonian, Finnish, Greek, Hungarian, Latvian, Lithuanian, Romanian, Slovak, Slovenian, and Swedish. All languages were thoroughly tested to ensure they meet DeepL’s high standards and unbeatable machine translation quality.

May 2020

DeepL is the first free translation service to enable users to specify exactly how certain words and expressions should be translated. The feature, known as the Glossary, is an innovative interface between DeepL Translator's artificial intelligence and people's individual requirements and preferences.

March 2020

Chinese and Japanese are added to DeepL Translator. Many journalists test the system and confirm that DeepL offers significantly better translations than the competition in these languages, as well.

February 2020

DeepL achieves further research breakthroughs in the architecture of neural networks; another quantum leap in translation quality. DeepL's new translation system is also scientifically evaluated in blind tests conducted with professional translators. The results show that the translators were four times more likely to prefer the translations from DeepL than from any other system.

September 2019

DeepL releases an application for Windows and MacOS that integrates into the system and allows users to translate from any application on their computer.

December 2018

DeepL Translator sees the addition of Russian and Portuguese. In these languages, too, the system achieves previously unknown translation quality.

March 2018

The free online service is supplemented by a paid version known as DeepL Pro. DeepL Pro offers API access, integration into translation software, and an optimized web translator. With the new DeepL API, developers can build the next generation of apps and tools, benefiting from DeepL's superior translation quality.

August 2017

DeepL Translator is released to the public, offering free translations between English, German, French, Spanish, Italian, Polish, and Dutch. Media outlets around the world echo the results of scientific testing: With never-before-achieved translation quality, DeepL has raised the bar for the entire field of machine translation.


Within Linguee GmbH, a team led by DeepL's founder Jaroslaw Kutylowski begins working on the first version of the DeepL Translator, a powerful new online translator based on neural networks. The team can leverage the existing dataset of the translation search engine Linguee. Many enhancements to the underlying neural networks are being developed, resulting in unprecedented translation quality.