LibreTranslate
An open-source machine translation API and web app that you can run on your own server.
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About LibreTranslate
LibreTranslate provides a translation API and a simple web interface for translating text and files, with automatic language detection. It is built on the Argos Translate engine and runs entirely on your own machine, so it works offline and text does not go to a third-party service.
A public instance is available at libretranslate.com, and the documentation explains how to set up your own API server in a few minutes. It suits developers and organisations who want translation inside their own apps without relying on a commercial cloud API.
Strengths
- Self-hostable and works offline
- Translates text and files
- HTTP API for use in other apps
- No dependence on commercial translation services
Limitations
- Translation quality can trail large commercial services
- Running your own server needs some setup and resources
Details
- Pricing
- FreeFree and open source to download and self-host.
- License
- Open source, license not stated
- Developer
- The LibreTranslate contributors
- Platforms
- Web, Self-hosted
- How it runs
- Web application, Self-hosted
- Account
- Not required
- Works offline
- Yes
- Best suited for
- Developers who want a private, self-hosted translation API
- Categories
- Privacy tools, AI writing
- Last verified
- Added
- Sources
Alternatives to LibreTranslate
Compare allSoftware that can replace LibreTranslate for an important use case, and what changes if you switch.
Argos Translate
An open-source offline translation tool written in Python, usable from the command line.
Argos Translate is the MIT-licensed engine behind LibreTranslate, used from the command line or Python on your own computer instead of through an HTTP server.
TranslateLocally
A machine translation app that runs translation models on your own device instead of a server.
TranslateLocally runs translation models on your own device through a desktop app and Chrome extension, but it is not open source and commercial extension use is not free.
DeepL
An AI translator and writing assistant for text, documents and speech, with desktop, mobile and browser apps.
DeepL is a proprietary hosted translator with desktop, mobile and browser apps plus an API with a free key, but text is processed on DeepL's servers.
Google Translate
Google's machine translation service for translating text, documents and websites between languages.
Google Translate is a free web service with no sign-up that handles text, documents and websites, but text is sent to Google's servers instead of your own.
Microsoft Translator
Microsoft's translation apps for text, speech, conversations, signs and documents, with offline language packs.
Microsoft Translator offers apps with offline language packs, while its business API is billed through Azure rather than self-hosted for free.
Yandex Translate
Yandex's online machine translation service for text, documents and images.
Yandex Translate is a free browser service for text, documents and images, with text processed on Yandex servers instead of a server you run.
LibreTranslate as an alternative
Listings that name LibreTranslate as an alternative.
Dialect
An open-source translation app for the GNOME desktop that works with several translation services.
LibreTranslate is an open-source translation API and web app you can self-host offline, removing the reliance on external services at the cost of server setup.
Papago
Naver's web translator for text, images, documents, voice and websites, strong in Korean.
LibreTranslate is open source and can be self-hosted offline, though translation quality can trail large commercial services.
Similar software
Related functionality, not necessarily a direct replacement.
PDFMathTranslate
An AI tool that translates scientific PDFs while keeping formulas, charts and layout intact.
Immersive Translate
A translation extension and app that shows bilingual side-by-side translations of web pages, PDFs and videos.
Reverso
An online translation, contextual dictionary and rephrasing tool for many languages.
