Free and Open Source Translation API. 100% self-hosted, no limits, no ties to proprietary services. Built on top of Argos Translate.

The best open source alternative to Apertium is LibreTranslate. If that doesn't suit you, our users have ranked more than 50 alternatives to Apertium and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Apertium are Lingva Translate, Crow Translate, SimplyTranslate and Translate You.
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


Crow Translate is a simple and lightweight translator programmed in C++ / Qt that allows to translate and speak text using Google, Yandex and Bing translate 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.




Translate You is a Translator App built with Material Design 3 (You) using the LibreTranslate API.




At its core, Tatoeba is a large database of example sentences translated into several languages. Search example sentences translated into many languages. Add and translate your own sentences. It's collaborative, open, free, and even addictive.


Android translation app using the LibreTranslate engine for translating text across 16 languages, with UI in English and German, five customizable themes, no ads, offline privacy, direct sharing of results, open-source code, lightweight performance and regular updates.




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.


LocalTranslate is an offline translation application that uses Firefox’s neural translation models to perform high-quality translations locally on your device.




Free, open-source desktop translation tool. Select text anywhere, press Ctrl+Q, translation appears — no browser needed. Plugin-based, so when a service breaks you swap the plugin. Includes Google, Bing, and AI plugins (Gemini, GPT, Mistral, Claude).




OmegaT is a free translation memory application written in Java. It is a tool intended for professional translators. It does not translate for you!



