LibreTranslate
Self-hosted machine translation API powered by open-source models
16.1k stars 1.7k forks last commit first released AGPL-3.0
Actively maintained
Last commit 23 Aug 2026.
LibreTranslate is a free and open-source machine translation service that provides a simple HTTP API and a web interface for translating text and supported documents. It is designed to be self-hosted and can run fully offline without relying on proprietary translation providers.
Key Features
- REST API for language detection and machine translation
- Web UI for interactive translations
- Offline-capable translation engine powered by Argos Translate
- Support for translating text and selected document/file formats
- Docker-based deployment options for quick setup
Use Cases
- Add private translation capabilities to internal applications via an API
- Run an on-premises translation service for sensitive or regulated content
- Provide translation features for websites and tools without third-party dependencies
LibreTranslate is a practical choice when you need a straightforward, self-controlled translation API with an open-source stack and the ability to operate in disconnected environments.
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