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BasicCAT review

Free#22 of 29 in Computer-Assisted Translation Software

A capable free desktop CAT tool with broad file, memory, terminology, and MT support.

7.0/10Editor score
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

BasicCAT is a free, open-source computer-assisted translation tool for translators working on Windows, macOS, or Linux. Its desktop workflow combines translation memory, terminology management, segment editing, language and spelling checks through LanguageTool, alignment, pretranslation, and machine-translation integration. It is aimed at translators and teams that need structured translation projects without adopting a browser-based platform or paid CAT subscription.

Its ecosystem coverage is a major strength. BasicCAT supports TXT, IDML, XLIFF, and Gettext PO files, along with TMX, TBX, and SRX standards. DOCX import and export supports external review, while project and external translation memories and termbases help carry existing resources into new work. Machine-translation connections include Baidu, Google, Microsoft Bing, Niutrans, Youdao, Yandex, MyMemory, Sogou, Sogou DeepI, Tencent Cloud, IBM Watson, and Amazon. Git-based version control and collaboration add a practical option for teams already working with Git.

The product’s breadth makes it more than a basic translation editor: it covers memory, terminology, quality checks, alignment, file exchange, machine translation, and segment merging or splitting in one desktop application. The trade-off is its focus. BasicCAT is not presented as a browser-based translation platform, and its open-source desktop model may be a poor fit for organizations looking specifically for a commercial SaaS plan or a web-first workflow. Choose it for free CAT functionality across major operating systems and a broad standards-and-integration set; consider an alternative if browser access or a commercial hosted model is central to your requirements.

BasicCAT pros and cons

  • Where it wins
    • Free and open source on Windows, macOS, and Linux
    • Translation memory, termbases, QA, alignment, and pretranslation
    • Git collaboration and many machine-translation integrations
  • Where it doesn't
    • Desktop application rather than a browser-based translation platform
    • Open-source model may not suit teams seeking a commercial SaaS plan
    • Core workflow centers on supported file formats and desktop work

BasicCAT fact sheet, pricing and score →

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