About OpenTranslate
OpenTranslate is a free, self-hosted, open-source machine translation platform built for developers and organizations that value privacy, control, and transparency.
Why OpenTranslate?
Most translation services are cloud-hosted, expensive at scale, and send your data to third parties. OpenTranslate runs entirely on your own infrastructure — your data never leaves your servers.
- 100% free with no per-character pricing
- Self-hosted — full data sovereignty
- Multiple engine support: LibreTranslate, Argos Translate, and local LLMs
- REST API with developer portal and API key management
- Role-based access: Guest, User, Developer, Admin
- Audit logging and admin dashboard
Translation Engines
LibreTranslate
Fast, neural machine translation. Open source and self-hostable.
Argos Translate
Offline, Python-based translation with model downloads.
LLM (local)
LLaMA-based translation via llama.cpp for high-quality contextual translations.
Open Source
OpenTranslate is MIT licensed. Contributions, bug reports, and feature requests are welcome on GitHub.