OpenTrad
What OpenTrad is
OpenTrad is an open-source automatic translation platform for text, documents, and web pages, offered through web, API, and extension tools. Its document translator preserves original formatting and accepts DOC/DOCX, XLS/XLSX, PPT/PPTX, ODT, ODS, HTML/XML, and TXT files. Listed language pairs cover Spanish with Galician, Catalan or Balearic Catalan, Portuguese or Brazilian Portuguese, French, and Asturian; English with Spanish, Galician, or Catalan; and Portuguese with Galician or Catalan. The service targets organisations processing large multilingual document volumes, along with businesses and administrations managing multilingual content. Its API connects translation to applications, websites, Drupal, email, messaging, and real-time content. API access is paid. A separate paid Trados Studio plug-in pre-translates projects and checks translated segments against the source, but currently works only with Trados Studio and includes Spanish-Galician and Spanish-Catalan. OpenTrad says translated text is not stored or used to train neural networks and that it follows European Union data-protection laws. The free translator plan costs nothing for documents up to 5MB.
Who it suits
It suits organisations, businesses, and administrations handling multilingual documents or web content. The free web plan fits document translations up to 5MB, while API and Trados integration require paid services.
What it does well
- Preserves formatting across many document types
- Offers website translation and glossary tools
- Provides API integration options
- Lists multiple European language pairs
- States translated text is not stored
What to know first
- API access is paid
- Trados plug-in works only with Trados Studio
- Free document plan has a 5MB limit
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free translator | Document translation up to 5MB | Free |
As opentrad.com lists them, read 12 Oct 2026. The maker's own page has the final word.
Verdict
OpenTrad combines formatted document translation, website tools, and integration options for multilingual workflows. Costs and tool limits differ: the basic translator is free within its size limit, while API and CAT features are paid.
Facts from OpenTrad's own pages
- API access
- Yes · opentrad.com, 23 Sept 2026
- API integration
- The API integrates automatic translation into applications, websites or services, with examples including Drupal, email and messaging, and real-time content. · opentrad.com, 12 Oct 2026
- API pricing
- The API is a paid service; the page directs customers to its rates or to contact Opentrad. · opentrad.com, 12 Oct 2026
- CAT integration
- Opentrad offers a paid Trados Studio plug-in that pre-translates projects and automatically revises translated segments against the original text. · opentrad.com, 12 Oct 2026
- CAT tool limit
- The CAT tools page says the plug-in currently works only with Trados Studio, and that this version includes Spanish-Galician and Spanish-Catalan. · opentrad.com, 12 Oct 2026
- Document formatting
- The web translator can translate documents while retaining their original format and supports DOC/DOCX, XLS/XLSX, PPT/PPTX, ODT, ODS, HTML/XML and TXT files. · opentrad.com, 12 Oct 2026
- Document translation
- Yes · opentrad.com, 23 Sept 2026
- Free plan
- Yes · opentrad.com, 23 Sept 2026
- Glossary tools
- Yes · opentrad.com, 23 Sept 2026
- Language coverage
- The Help Center lists Spanish-Galician, Spanish-Catalan/Balearic Catalan, Spanish-Portuguese/Brazilian Portuguese, English-Spanish, English-Galician, English-Catalan, Spanish-French, Portuguese-Galician, Portuguese-Catalan and Spanish-Asturian. · opentrad.com, 12 Oct 2026
- Maker
- The legal notice identifies FACTORÍA DE SOFTWARE E MULTIMEDIA, S.L. as the responsible party and gives its registered office in Santiago de Compostela, A Coruña, Spain. · opentrad.com, 12 Oct 2026
- Product
- Opentrad describes itself as an open source automatic translation platform for texts, documents and web pages. · opentrad.com, 12 Oct 2026
- Purpose
- It is aimed at organisations handling large volumes of multilingual documents and at businesses and administrations seeking to manage multilingual content. · opentrad.com, 12 Oct 2026
- Security
- Opentrad says it does not store translated texts or use them to train neural networks, and says it complies with European Union data protection laws. · opentrad.com, 12 Oct 2026
- Support
- The Help Center lists [email protected] for commercial support and [email protected] for technical support. · opentrad.com, 12 Oct 2026
- Translation guidance
- The maker recommends correcting the source text, using short simple sentences, avoiding colloquial or idiomatic expressions, and reviewing the translation. · opentrad.com, 12 Oct 2026
- Website translation
- Yes · opentrad.com, 23 Sept 2026
Where OpenTrad stands on Freedom251
- Translation apps#28 of 158
- Translation Software#46 of 156