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LibreTranslate

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Open SourceFreeAPI
Description:

LibreTranslate is a free, open source machine translation API supporting 50+ languages. Self-hosted, offline solution for secure, privacy-focused translation needs. Ideal for developers and businesses.

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Last update:
4 November, 2025

Overview of LibreTranslate

LibreTranslate is a free and open source machine translation API that enables users to translate text and documents across 50+ languages without relying on proprietary services like Google or Azure. This self-hosted solution works entirely offline, making it ideal for privacy-conscious users, developers, and organizations requiring secure translation capabilities. The platform supports popular languages including English, Spanish, French, German, Chinese, Japanese, and Arabic, with automatic language detection for seamless multilingual communication.

Built on the Argos Translate engine, LibreTranslate serves as a powerful alternative to commercial translation APIs, offering developers a flexible foundation for building multilingual applications. The tool caters to diverse audiences including Language Learning platforms, For Developers, Translation services, and Open Source projects. With its comprehensive language support and offline functionality, it's particularly valuable for applications requiring data privacy or operating in restricted network environments.

How to Use LibreTranslate

Getting started with LibreTranslate is straightforward – simply visit the web interface, select your source and target languages from the dropdown menus, paste your text into the input field, and click translate. For developers, integration involves making HTTP POST requests to the translation endpoint with your text and language parameters. The API returns JSON responses containing the translated content, making it easy to incorporate into applications. Self-hosted deployment requires Docker setup or manual installation from the GitHub repository, with configuration options for custom models and language pairs.

Core Features of LibreTranslate

  1. Multilingual Translation – Supports 50+ languages including English, Spanish, Chinese, and Arabic
  2. File Translation – Process documents and files in various formats for batch translation
  3. Self-Hosted Deployment – Run entirely offline without external API dependencies
  4. Open Source API – Free translation API with customizable endpoints and integration
  5. Language Detection – Automatic source language identification for seamless processing

Use Cases for LibreTranslate

  • Developers building multilingual applications requiring free translation API
  • Businesses needing self-hosted translation for data privacy compliance
  • Content creators translating documents and files across multiple languages
  • Educational institutions implementing language learning tools and resources
  • Open source projects requiring machine translation capabilities
  • Enterprises deploying offline translation solutions for secure environments

Support and Contact

For technical support and inquiries, visit the official website or contact via email at contact@libretranslate.com. Access community resources through the GitHub repository for development questions and implementation guidance.

Company Info

LibreTranslate is developed by UAV4GEO as an open source project, providing free and accessible machine translation technology to the global community without commercial restrictions.

Login and Signup

Access the translation interface directly at LibreTranslate.com without registration requirements. For API access and self-hosting options, refer to the documentation available on the project's GitHub repository.

LibreTranslate FAQ

Is LibreTranslate completely free to use?

Yes, LibreTranslate offers a free and open source translation API that can be self-hosted without subscription costs.

How many languages does LibreTranslate support?

LibreTranslate supports over 50 languages including English, Spanish, French, German, Chinese, Japanese, and Arabic.

Can LibreTranslate work offline without internet connection?

Yes, as a self-hosted solution, LibreTranslate works entirely offline once deployed on your local environment.

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