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Best Computer-Assisted Translation Software 2025

What is Computer-Assisted Translation Software?Computer-Assisted Translation (CAT) software is an interactive platform that facilitates language translation using a combination of automated software and human translators to produce high-quality translations. These tools help reduce a translator’s workload, improve translation speed, quality, and consistency.CAT is part of a broader category of Translation tools that overlap with and include machine translation, localization software, and ...

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What is Computer-Assisted Translation Software?


Computer-Assisted Translation (CAT) software is an interactive platform that facilitates language translation using a combination of automated software and human translators to produce high-quality translations. These tools help reduce a translator’s workload, improve translation speed, quality, and consistency.


CAT is part of a broader category of Translation tools that overlap with and include machine translation, localization software, and translation management software.


CAT is used by language service providers, professional translators, and businesses that need to localize their content. It gives corporations with global markets the ability to support customers and users in their native language. Increasingly, CAT software is bundled with localization software that targets specific geographic/cultural markets for a company’s products and services. Machine translation software may also be included in this bundle and automates the translation process.


CAT is sometimes confused with machine translation.CAT tools require human intervention to proofread and edit automated translations. Machine translations, on the other hand, provide machine translations without any human intervention or editing. As a result, CAT translations are typically more consistent and accurate. Machine translation, which is dependent upon AI and machine learning, is quick and easy but not always reliable. Specifically, it has difficulty handling contexts, idioms, and sarcastic dialog.


CAT software translates documents, text, and audio files for a variety of use cases: owner manuals, service guides, websites, mobile apps, games, software, localizing CMS content, multi-lingo SEO, and IoT. It is especially valuable in the legal, science, technology, and medical fields that require precise, consistent translations.

Computer-Assisted Translation Software Features


Most computer-assisted translation tools will offer the following features:


  • Translation Editor

  • Translation Alignment (provides side by side, machine and user translations for comparison)

  • Terminology Management (customized terms for specific fields)

  • Segment Analysis (determines the amount of translation effort)

  • Language Search (looks for matching text in previous translations)

  • Translation Memory (databases of approved manual and automated translations)

  • AI Dynamic Machine Learning (applies user editing to all other relevant text in the document)

  • File Parsing (preserves original format and supports multiple file formats)

  • Spell, Grammar Checker

  • Version Control

  • Workflow Tools - Translation Collaboration (allows multiple users to collaborate real-time on a translation)

  • Localization Testing

  • Q/A Tools

  • Translation Analysis (analyze quality and effectiveness of translations)

  • Translation Project Management

CAT software is primarily implemented through Cloud-based SaaS, but there are web-based, mobile, and desktop platforms.

Computer-Assisted Translation Software Comparison


In addition to reviewing the many CAT features that you can choose from, consider these points when evaluating computer-assisted translation software.



  1. Human vs. machine: What blend of human and automated translation works best for your needs? The more sophisticated your subject matter, the greater need for human intervention and revision.

  2. Multi-language support: Does it support the languages you require? Do you need language support beyond just translating from English to other languages or from other languages into English?

  3. Scope: What is the scope of your translation requirements? Which of your products and services require translation and does the software readily support them? What is the volume of work? CAT tools may have different pricing models, some of which are based on usage of the tool or volume of translations needed.

  4. Integrations: What are your integration requirements for design, engineering, workflow, support, CMS tools and code repositories?


Pricing Information


Pricing for computer-assisted translation software is contingent on the number of features, customization, number of seats, the volume of words, and length of commitment. Some products are free, while others have starting prices as low as $12 a month, ranging up to over $375 a month.


Higher-cost plans support advanced analytics, larger translation memory databases, enhanced machine translation, AI, and quality control. Word count-driven pricing products are primarily offered for the freelance translation market.


Computer-assisted translation software is predominately available as cloud-based products, via a monthly subscription. Free trials are often provided. There are several open-source free versions available as well.


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Computer-Assisted Translation FAQs

What does Computer-Assisted Translation Software do?

Computer-assisted translation (CAT) software helps translators by automating the translation of documents, text, and audio files. The translations are then edited and reviewed by human workers. It expedites the work, producing a more accurate, high-quality result.

A full-featured installation includes machine translation, analytics, localization, extensive language translation databases, project management, and workflow tools.

What are the benefits of using Computer-Assisted Translation Software?

There are many benefits of using CAT tools, including:

  • Improved quality of translations: The products ensure consistency across all translations. They also Improve accuracy for complex, highly specialized subjects, and professional terminology.
  • Reduced costs: These tools save time and effort by automating part of the translation work. Specifically, they reduce turnaround times and enhance productivity.
  • Machine learning: Over time, CAT software leverages previous translations to reduce translation workload, produce more accurate translations, and reduce errors.
  • Localization support: Companies can use these tools to support customers and users in their native language. They assist in translating local help, chat, and email customer interactions.
  • Real-time translation: Many of these tools can support real-time conversations with users in different languages.
  • File support: These tools support a wide variety of source files (e.g. text, audio, video, images, etc.).


What are the best Computer Assisted Translation Software products?

How much does Computer Assisted Translation Software cost?

Feature-driven pricing for most products ranges from $12 to $375 a month. Many vendors offer free trials. There are a significant number of free versions, including open-source platforms that interested buyers can test out first.
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