LibreTranslate

Free and Open Source Machine Translation API.

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Overview

LibreTranslate is a free and open-source neural machine translation API. It provides a genuine alternative to proprietary APIs from big tech companies. Because it's open-source, users can download and run their own translation server, giving them complete control over their data and ensuring privacy. It is powered by the open-source Argos Translate library.

✨ Key Features

  • Free and open-source
  • Self-hostable for data privacy
  • REST API for integration
  • No rate limits or usage tracking on self-hosted instances
  • Offline capable
  • Language detection

🎯 Key Differentiators

  • Completely free and open-source
  • Self-hostable for 100% data privacy
  • Offline capability

Unique Value: Take back control of your data with a free, open-source, and self-hostable translation API that works offline.

🎯 Use Cases (4)

Privacy-conscious translation Internal company tools and applications Academic research and experimentation Integrating translation into open-source projects

✅ Best For

  • Running a private translation service within a company's firewall
  • Providing a free translation alternative for open-source applications
  • Offline translation in environments without internet access

💡 Check With Vendor

Verify these considerations match your specific requirements:

  • Users who require the highest possible translation quality for major language pairs
  • Enterprises needing advanced management features, support, and SLAs

🏆 Alternatives

Google Cloud Translation DeepL Microsoft Translator

While proprietary APIs may offer higher quality for some languages, LibreTranslate is the best choice for users whose top priority is data privacy, cost, and control.

💻 Platforms

API Web Self-hosted Server (Linux, Docker)

✅ Offline Mode Available

🔌 Integrations

API

🔒 Compliance & Security

✓ GDPR

💰 Pricing

Contact for pricing
Free Tier Available

Free tier: Free to download and self-host. Public API has rate limits.

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