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LibreTranslate

libretranslate.com

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Spec score 8.2 #56 of 156 in Translation Software

What it is

LibreTranslate is a free and open source machine translation API powered by the Argos Translate library. It supports text translation, automatic source-language detection, HTML or markup translation, alternative translations, and language detection. Its API also includes file translation. When a requested language pair is not directly available, the service can route through another language, usually English. Users can run LibreTranslate on their own machine or server for free, and the documentation describes offline-capable local use. Installation and deployment options include Python, Docker, Gunicorn, Kubernetes, and Helm. Listed integrations include a Discourse translator plugin, Android and iOS apps, Firefox extensions, and the minbrowser web browser. The hosted portal asks users to split requests longer than 2,000 characters into smaller chunks. Hosted Pro costs $29 / month and Business costs $58 / month; both list unlimited translations, with bursts up to 80 and 200 translations per minute respectively. There is no free trial, and the portal lists a 7 days money-back guarantee. LibreTranslate says translation texts are not stored or logged.

Spec sheet

Product
LibreTranslate is a free and open source machine translation API powered by the Argos Translate library.Read 4 Oct 2026 · docs.libretranslate.com
Deployment
The documentation describes installation with Python or Docker, as well as deployment with Gunicorn, Kubernetes, and Helm.Read 4 Oct 2026 · docs.libretranslate.com
Free plan
YesRead 22 Sep 2026 · portal.libretranslate.com
Paid from
29Read 22 Sep 2026 · portal.libretranslate.com
Integrations
Listed integrations include a Discourse translator plugin, Android and iOS apps, Firefox extensions, and the minbrowser web browser.Read 4 Oct 2026 · docs.libretranslate.com
Privacy
The privacy notice says translation texts are not stored or logged and that payment information is stored by Stripe.Read 4 Oct 2026 · portal.libretranslate.com
Support
The portal directs users to contact support for API keys with higher request-per-minute or character limits.Read 4 Oct 2026 · portal.libretranslate.com
License
The documentation identifies the software license as GNU Affero General Public License v3.Read 4 Oct 2026 · docs.libretranslate.com
API access
The hosted libretranslate.com API requires a purchased API key, while self-hosted instances do not require one by default.Read 4 Oct 2026 · docs.libretranslate.com
Document translation
YesRead 22 Sep 2026 · portal.libretranslate.com
Files
The API reference includes a file translation endpoint, and the installation options include a setting to disable file translation.Read 4 Oct 2026 · docs.libretranslate.com
Hosted service limits
The portal says requests longer than 2,000 characters should be split into smaller chunks.Read 4 Oct 2026 · portal.libretranslate.com
Language coverage
If a direct language pair is unavailable, LibreTranslate automatically pivots through another language, usually English.Read 4 Oct 2026 · docs.libretranslate.com
Offline use
The site describes LibreTranslate as offline capable, and its installation guide supports running it locally.Read 4 Oct 2026 · libretranslate.com
Self-hosting
Users can run LibreTranslate for free on their own machine or server.Read 4 Oct 2026 · docs.libretranslate.com
Translation features
The API supports text translation, automatic source-language detection, HTML or markup translation, alternative translations, and language detection.Read 4 Oct 2026 · docs.libretranslate.com
Translation memory
NoRead 22 Sep 2026 · portal.libretranslate.com
Trial and refund
The portal says there is no free trial and offers a 7 days money-back guarantee.Read 4 Oct 2026 · portal.libretranslate.com

Plans and prices

Pro $29 a month $29 / month Bursts of up to 80 translations / minute · Unlimited translations · 7 days money-back guarantee Read 4 Oct 2026 · portal.libretranslate.com
Business $58 a month $58 / month Bursts of up to 200 translations / minute · Unlimited translations · 7 days money-back guarantee Read 4 Oct 2026 · portal.libretranslate.com

Every LibreTranslate plan and price →

Strong points and limits

Strong points

  • Can be run locally for free
  • Supports text and file translation
  • Offers Python and Docker installation options
  • Translation texts are not stored or logged
  • Hosted plans list unlimited translations

Limits

  • Hosted requests over 2,000 characters should be split
  • No free trial
  • Hosted Pro is $29 / month

Who it suits

LibreTranslate suits developers or organizations seeking a machine translation API, especially those wanting to run it locally or on their own server. Hosted plans are available for users who do not want to self-host.

Verdict

LibreTranslate offers both self-hosted use and paid hosted plans, with text and file translation through its API. Hosted requests have a stated length-handling limit, while local deployment is an option for users who need offline-capable use.

Where Specifiction places it

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