The best open source alternative to DeepL Translator is LibreTranslate. If that doesn't suit you, our users have ranked more than 100 alternatives to DeepL Translator and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to DeepL Translator are Lingva Translate, Translate You, SimplyTranslate and Apertium.
Free and Open Source Translation API. 100% self-hosted, no limits, no ties to proprietary services. Built on top of Argos Translate.
Alternative front-end for Google Translate, serving as a Free and Open Source translator with over a hundred languages available
This is only an open-source frontend for Google Translate like Nitter for Twitter or NewPipe, Invidious for YouTube. The translation is still performed by Google Translate.
Nice alternative for Google Translate, also for DeepL(poor language support, no Ukranian)
Translate You is a Translator App built with Material Design 3 (You) using the LibreTranslate API.
SimplyTranslate offers a lightweight alternative frontend for Google Translate, supporting 108 languages and Text-To-Speech, catering to privacy-conscious users with diverse needs. It also integrates Reverso Context and iCIBA to broaden language learning tools.
Apertium is a rule-based machine translation platform. It is free software and released under the terms of the GNU General Public License.
Expand to new markets by instantly translating your documents, apps, and webpages. Create multilingual chatbots to communicate with your customers on their terms.
Open source offline translation app written in Python. Uses OpenNMT for translations, SentencePiece for tokenization, Stanza for sentence boundary detection, and PyQt for GUI. Designed to be used either as a GUI application or as a Python library.
Select word or phrase with Alt key pressed - then hover over an icon below the selection. Almost instantly you will see a tooltip with the translation.
Offering seamless translation with 200 languages and 40,000 combinations, this service ensures high-speed, accurate translations with API support and GDPR compliance.
Brave Translate is the in-built translation feature of the Brave web browser, offering fast and accurate translations across 108 languages. Powered by Lingvanex, it prioritizes user privacy by removing IP addresses and not storing translated text. Easily accessible via the address bar.
OpenL Translator is an open source front-end android application to the high-quality DeepL machine translation services (available for English, German, French, Spanish, Italian, Dutch and Polish).
Germany
EU
Spain
United States
Italy
France
Truly open-source and self-hostable.