LibreTranslate/LibreTranslate
Summary
LibreTranslate is a free, open-source machine translation API that is self-hosted, offline capable, and easy to set up. It relies on the Argos Translate engine to perform translations and emphasizes privacy by avoiding reliance on external cloud services. The project is AGPL-3.0 licensed and provides both online access via libretranslate.com and comprehensive documentation for self-hosted deployment.