
MateCat - Detailed Review
Translation Tools

MateCat - Product Overview
MateCat Overview
MateCat is a web-based Computer-Assisted Translation (CAT) tool that has been making significant waves in the translation industry. Here’s a brief overview of its primary function, target audience, and key features:
Primary Function
MateCat is developed to assist human translators in their work, enhancing their speed and accuracy. It integrates various tools such as translation memories (TMs), terminology databases, concordance tools, and machine translation (MT) engines. This integration helps in managing the localization workflow efficiently and improves the quality of translations by leveraging machine learning and field-specific language knowledge.
Target Audience
MateCat is versatile and caters to a wide range of users. It is ideal for:
- Individual professional translators who need to work autonomously on their translation tasks.
- Language Service Providers (LSPs) that manage multiple projects and need a reliable tool to streamline their processes.
- Companies and non-professional translators who require quality translations with fast turnaround times and competitive pricing.
Key Features
- Translation Memories and Terminology Databases: MateCat queries these databases to provide exact or fuzzy matches of the current source segment, suggesting translations to the user. These matches are updated in real-time as new translations are added.
- Machine Translation: The tool leverages statistical MT, offering features like self-tuning MT for specific domains, user adaptive MT for quick adaptation from user corrections, and informative MT to enhance user productivity.
- GPT-4 Integration: The latest version of MateCat incorporates OpenAI’s GPT-4, providing context-specific word definitions and declension recognition. This feature helps in minimizing false positives in terminology quality assurance and streamlines the translation process by keeping translators within the tool.
- File Format and Language Support: MateCat supports over 80 different file formats and translations into more than 200 languages, making it highly versatile.
- Accessibility: It is a free and open-source tool, accessible via any browser with an internet connection. It also allows for offline translation of up to 30 segments before synchronizing once the connection is re-established.
Overall, MateCat is a powerful and user-friendly CAT tool that enhances the translation process with its advanced features and integrations, making it an invaluable resource for translators and translation companies alike.

MateCat - User Interface and Experience
User Interface Overview
The user interface of MateCat, a Computer-Assisted Translation (CAT) tool, is designed to be intuitive and user-friendly, making it easy for translators to manage their translation projects efficiently.Translation Editor Interface
The core of MateCat’s interface is the Translation Editor page. Here, translators can access all the necessary features to work on translation jobs. The interface is divided into several key sections:Header
This section includes a File navigation list that allows translators to view and switch between different files uploaded to the job. Translators can also go to the first segment of the job or the current segment they are working on.Main Workspace
Translators work on segments of the text, which are separated based on punctuation marks. This allows them to focus on one segment at a time, making the translation process more manageable.Download Menu Icon
This feature enables translators to download the translation, draft documents, original files, and export the job in XLIFF or TMX formats.Menu
Accessible from here are features like the Revise option, Volume Analysis, XLIFF-to-target converter tool, and a list of shortcuts. The interface also includes a Filter feature to display only the segments that need work, and a Search and Replace function to find and change terms and sentences within the job.Footer and Progress Indicators
The footer of the Translation Editor provides crucial information about the job’s status:Job ID
Displays the unique ID for the current job.Progress Bar and Percentage
Shows the portion of the translation completed.Word Count
Displays the total number of words and the number of unconfirmed words, both in raw and weighted counts.Speed and ETC
Indicates the speed at which the job is being completed (words translated per hour) and the estimated time to complete the job.Ease of Use
MateCat is praised for its ease of use. Users have reported that it is very intuitive, even for those who have not used CAT tools before. The support team is also highly responsive, answering questions quickly, which helps in resolving any initial queries.Overall User Experience
The user experience with MateCat is generally positive. Here are some key points:User-Friendly Interface
The layout is clean, minimal, and easy to navigate. Translators appreciate the organized system and the ability to easily find necessary information.Collaboration
MateCat supports simultaneous teamwork on the same project, with features like color-coded segment status and project management pages.Features and Tools
The tool includes valuable features such as translation memory management, glossaries, spell-checkers, and machine translation options with varying levels of accuracy. It also supports multiple file formats and retains the original data format after translation.Performance
While generally smooth, some users have reported issues with memory consumption, application crashes, and compatibility with certain browsers like Safari on macOS. Overall, MateCat’s user interface is well-structured, easy to use, and packed with features that streamline the translation process, making it a valuable tool for translators.
MateCat - Key Features and Functionality
MateCat: An Overview
MateCat, a web-based computer-assisted translation (CAT) tool, offers several key features that leverage AI to enhance translation productivity and quality.Integration of GPT-4 for Context-Specific Definitions
MateCat incorporates OpenAI’s GPT-4 to provide context-specific definitions for words highlighted in the source language. This feature eliminates the need to leave the CAT tool to search for definitions. By clicking on an icon, translators can get immediate explanations of word meanings, which is particularly useful for verifying context-specific word meanings and addressing terminology errors.Adaptive Neural Machine Translation (MT)
MateCat now integrates ModernMT’s adaptive neural machine translation model as its default MT engine. This system improves translation suggestions in real time, adapting to the user’s style and the project’s style. The MT suggestions are refined after each correction and with each uploaded translation memory, reducing the need for repetitive corrections and enhancing overall translation quality. This feature has significantly increased translator productivity, with some users reporting up to a 4-fold increase in productivity while maintaining or improving translation quality.Declension Recognition
The tool includes declension recognition, which enhances glossary matches in the source text by identifying different verb forms and other declensions in commonly used locales. This feature minimizes false positives in terminology quality assurance, ensuring that glossary-approved translations are accurately highlighted and used.Real-Time Processing and Dynamic Updates
MateCat’s innovative data structures and algorithms allow for real-time updates as new translations are provided by the user. This dynamic environment ensures that translation models adapt quickly, improving efficiency and accuracy. The tool utilizes single CPU multithreading and distributed computing facilities to maintain real-time performance.Context-Aware Translation
MateCat provides MT suggestions that are consistent with the entire document, not just the current segment. This context-aware approach considers inter-sentence and intra-sentence anaphoric expressions, syntactic concordances, and lexical coherence, leading to better disambiguation and more accurate translations.Translation Memories (TMs) and Terminology Databases
The tool offers access to translation memories and terminology databases, which help in maintaining consistency and accuracy across translations. These resources are updated in real time, ensuring that translators have the most current and relevant information.Editing Log and Productivity Analysis
MateCat collects detailed timing information and edit logs for each segment, providing insights into translation speed, post-editing effort, and the source of top suggestions (MT or TM). This data can be accessed in real time and downloaded as a CSV file for detailed productivity analysis.Free Access and Open-Source
MateCat is available for unlimited free usage, with no limitations on the number of users, projects, files, or storage. It is released as open-source software under the Lesser General Public License (LGPL), making it accessible to a wide range of users, including freelancers and language service providers.Conclusion
These features collectively enhance the translation process by providing accurate and context-specific suggestions, improving productivity, and ensuring high-quality translations.
MateCat - Performance and Accuracy
Performance Comparison
MateCat is often compared to other advanced machine translation (MT) tools, such as ChatGPT-4, to assess its performance. A study using the Bilingual Evaluation Understudy (BLEU) score and accuracy metrics found that MateCat performs well but is outperformed by ChatGPT-4 in certain aspects. Specifically, MateCat achieved a BLEU score of 0.82 and an accuracy of 0.49, whereas ChatGPT-4 scored 0.88 on the BLEU score and 0.68 in accuracy.Time to Edit (TTE) Metric
Another metric used to evaluate MT quality is the Time to Edit (TTE) per word, which measures the time translators spend post-editing the output. Research by Translated, the company behind MateCat, shows that the TTE for MT output has been declining steadily. This indicates that MT outputs, including those from MateCat, are requiring less editing time from translators, suggesting an improvement in quality over time. However, this metric does not specifically isolate MateCat’s performance but rather reflects the general trend in MT improvements.Limitations and Areas for Improvement
Despite its good performance, MateCat has some limitations. For instance, the study comparing MateCat with ChatGPT-4 highlights that MateCat faces challenges with translating specific elements such as dates, names, idioms, cultural items, and numerical expressions. These elements often require a deep understanding of language nuances and cultural context, which can be challenging for MT systems. Additionally, feedback from translators using CAT tools like MateCat has indicated a need for additional functionalities such as spell-checkers, keyboard shortcuts, and better interface design to reduce the feeling of an overloaded interface.User Feedback and Interface
Users have also provided feedback on the interface and functionality of MateCat. While the arrangement of suggestions in the tool is positively rated, the lack of certain functionalities and the interface design are areas that need improvement. Translators have noted the need for features like document formatting support (e.g., bold/italic fonts, bullets) and a more streamlined interface.Conclusion
In summary, MateCat is a solid tool in the CAT category, but it faces competition from more advanced MT systems like ChatGPT-4. While it shows good performance, there are areas for improvement, particularly in handling specific translation challenges and enhancing the user interface and functionalities.
MateCat - Pricing and Plans
MateCat Pricing Overview
MateCat, a computer-assisted translation (CAT) tool, offers a straightforward and cost-effective pricing structure that is particularly appealing to individuals and organizations looking for free translation management solutions.
Key Points on MateCat Pricing
- Free Plan: MateCat is entirely free to use. There are no subscription fees or costs associated with its use.
Features Available in the Free Plan
- Language Support: MateCat supports over 200 languages and allows users to select from more than 30 subjects or industries.
- File Formats: It supports 80 file formats, including Google Drive files.
- Translation Memory: Users can upload their own translation memory or use MateCat’s public translation memory, which contains over 12 billion words.
- Machine Translation: MateCat includes machine translation features, where MyMemory automatically selects the best machine translation engine for the specified language pair.
- Collaboration: Multiple translators can work on the same project simultaneously, sharing translation memories and glossaries.
- Linguistic Quality Assurance: Automated checks are available in over 75 languages via LexiQA.
Additional Notes
- No Hidden Costs: There are no additional fees for features like machine translation or access to the public translation memory. Everything is included in the free plan.
- No Free Trial Needed: Since MateCat is free, there is no need for a free trial period.
Conclusion
In summary, MateCat offers a comprehensive set of features for computer-assisted translation without any cost, making it an attractive option for translators and translation companies.

MateCat - Integration and Compatibility
Integrations with Other Tools
MateCat actively integrates with several quality assurance (QA) and translation management tools. For instance, it integrates with lexiQA, a QA tool that provides real-time checks for issues like glossaries, tags, and other error classes directly within MateCat’s editor. This integration allows for live QA checks as you type, enhancing the accuracy and quality of translations.Machine Translation Engines
MateCat supports multiple machine translation (MT) engines, which can be selected based on specific translation needs. These include ModernMT, Lara, Google Translate API, Intento, Microsoft Translator Hub, and SmartMATE. Users can easily switch between these MT engines by accessing the Settings panel and selecting the desired MT option.Compatibility Across Platforms
MateCat is a web-based tool, making it accessible from any device with a compatible web browser. It supports Google Chrome 30 or higher, Safari 5.1.7 or higher, and can also be used with Firefox, although some advanced features may not be available on Firefox. This web-based nature ensures that users can work from anywhere without worrying about installation, software updates, or compatibility issues.Device Flexibility
Since MateCat is web-based, it can be used on various devices including desktops, laptops, and tablets, as long as they have a supported web browser. This flexibility allows translators to work from anywhere, enhancing productivity and convenience.File Formats and Languages
MateCat supports a wide range of file formats (56 in total) and languages (79 languages), making it a versatile tool for diverse translation projects. It also allows users to upload files directly or drag and drop them into the platform, and it automatically checks the source language to ensure it matches the selected project settings.Conclusion
In summary, MateCat’s integration with other tools like lexiQA, its support for multiple MT engines, and its compatibility across various web browsers and devices make it a highly versatile and user-friendly translation platform.
MateCat - Customer Support and Resources
Customer Support
Live Chat
Email Support
info@matecat.com
for any queries or assistance you need.Availability
Additional Resources
User Guides and Tutorials
Documentation and FAQs
Integration with Translated
Features and Tools
MyMemory and Cross-Language Matches
Linguistic Quality Assurance
File Support and Machine Translation
These resources and support options are designed to help you use MateCat efficiently and effectively, ensuring you can manage your translation projects with ease.

MateCat - Pros and Cons
Advantages of MateCat
MateCat, a web-based Computer-Assisted Translation (CAT) tool, offers several significant advantages for translators:Free Usage
MateCat is free, which is a major benefit for freelance translators who can use a CAT tool without incurring the cost of expensive software.User-Friendly Interface
The tool has a clean, minimal, and easy-to-use interface that is comfortable to look at and does not overload users with information. It is organized, making it easy to find necessary information.Efficiency and Productivity
MateCat helps translators complete projects faster by leveraging translation memories (TMs), terminology bases, and machine translation (MT) suggestions. It also identifies repetitions in large projects, ensuring consistency throughout the translation.File Compatibility and Format Retention
The tool accepts a variety of file formats and retains the original data format after translation, including fonts, margins, and style. This makes it easier to work with and edit the translated documents.Collaboration Features
MateCat allows teams of translators to collaborate simultaneously on the same project, sharing TMs and glossaries, and even chatting within the platform. This facilitates efficient project management and delivery.Large Translation Memory
It utilizes the largest translation memory in the world, with over 12 billion words, which helps in reusing content and achieving higher match rates (up to 20% more matches).Machine Translation Options
MateCat offers advanced machine translation options, including self-tuning MT for specific domains, user adaptive MT for quick adaptation from user corrections, and informative MT to enhance user productivity.Progress Tracking and Time Management
The tool provides features like progress meters and word count tracking, helping translators manage their time effectively and see how many words they have translated and how much time is needed to complete the project.Technical Support
MateCat offers free technical support via email, ensuring that users’ queries are answered promptly.Disadvantages of MateCat
Despite its numerous advantages, MateCat also has some notable disadvantages:Internet Dependency
One of the significant drawbacks is that MateCat requires an internet connection to function, which can be a limitation for those who need to work offline.Need for Proofreading
The translations provided by MateCat often require editing and proofreading due to potential grammar mistakes or too literal translations. This means users must have advanced knowledge of both the source and target languages to ensure accuracy.Memory Consumption Issues
Some users have reported issues with memory consumption, which can lead to application crashes, especially when working with large files or using certain browsers like Safari on macOS.Segmenting Issues
The tool sometimes splits sentences into multiple segments, making it difficult to maintain consistency and context in the translation. Users often need to refer to the original source file to ensure coherence.Limited Offline Functionality
While MateCat saves work in case of an internet connection loss, it does not allow for offline work. Users must upload their work once they are back online.Consistency and Grammar
MateCat’s automatic translations can lack consistency and may contain grammar mistakes, requiring careful review and correction by the user. By considering these points, users can make an informed decision about whether MateCat meets their translation needs.
MateCat - Comparison with Competitors
Unique Features of MateCat
- Integration with GPT-4: MateCat has recently incorporated OpenAI’s GPT-4, which enhances productivity and translation quality. This integration allows for context-specific word meanings to be accessed directly within the tool, reducing the need to look up definitions externally. It also introduces declension recognition, improving glossary matches and reducing false positives in terminology QA.
- Context-Aware Translation: MateCat provides translation suggestions that are consistent with the entire document, taking into account inter-sentence and intra-sentence anaphoric expressions, syntactic concordances, and lexical coherence. This context-aware approach helps in better disambiguation between lexical alternatives.
- Real-Time Processing: MateCat uses innovative data structures and algorithms that can be updated in real-time as new translations are supplied by the user. This ensures that the translation process is dynamic and efficient.
- Edit Log and Productivity Analysis: MateCat collects detailed timing information and edit operations for each segment, providing valuable insights into translation speed and post-editing effort. This data can be accessed through the Editing Log page or downloaded as a CSV file for further analysis.
Potential Alternatives
Smartcat
- Smartcat is often highlighted as a top alternative to MateCat. It offers a rich set of technologies, including neural machine translation, image translation, and AI text generation. Smartcat is known for its user-friendly interface and extensive features for managing translation projects.
Trados Studio
- Trados Studio is a comprehensive CAT tool that allows individual translators to edit, review, and manage their translation projects. It is known for its extensive features and is a popular choice among professional translators.
DeepL
- DeepL is another powerful translation tool that stands out for its accuracy and ability to capture the context and nuances of the original text. It supports translation in 31 languages and maintains the formatting of the original document. DeepL also offers a free plan with limited features and integrations with Windows, iOS, and a Chrome plugin.
Taia
- Taia Translations is an AI-assisted platform that combines machine translation with human editing. It supports 68 different file formats and covers 97 languages. Taia offers various translation quality options and provides instant rate estimates, although it lacks integrations with CMS or repositories and has slower turnaround times compared to some other tools.
Key Differences
- Integration and Automation: Unlike MateCat, which integrates GPT-4 for enhanced context-specific translations, tools like DeepL and Taia do not offer such advanced integrations. DeepL, however, excels in maintaining document formatting and offers a user-friendly interface.
- Cost and Accessibility: MateCat is available for unlimited free usage, while tools like Taia charge per word with varying rates depending on the language. DeepL offers a free plan but with limited features.
- Specialized Features: MateCat’s focus on context-aware translation and real-time processing sets it apart from more general translation tools like Google Translate or Bard, which are more geared towards quick, general translations rather than detailed, context-specific work.

MateCat - Frequently Asked Questions
Here are some frequently asked questions about MateCat, along with detailed responses:
Q: What is MateCat and what does it do?
MateCat is a web-based computer-assisted translation (CAT) tool that integrates machine translation, translation memories, terminology databases, and concordance tools to facilitate the translation process. It is designed to improve translation accuracy and productivity by providing context-specific suggestions and managing the localization workflow.
Q: Is MateCat free to use?
Yes, MateCat is free to use. It offers a free plan with no licensing costs, making it beneficial for translation companies and individual translators to increase their profits.
Q: What are the key features of MateCat?
MateCat includes several key features such as:
- Integration with OpenAI’s GPT-4 for context-specific word meanings and declension recognition.
- Access to translation memories (TMs) and terminology databases.
- Machine translation (MT) suggestions that are context-aware and consistent with the entire document.
- Real-time processing and updating of translation models.
- An edit log to track and analyze translation speed and post-editing effort.
Q: How does MateCat improve translation quality?
MateCat improves translation quality by providing context-specific definitions for words, recognizing declensions such as different verb forms, and using machine learning to automatically improve translation suggestions over time. It also ensures that MT suggestions are consistent with the already edited segments and the whole document.
Q: Does MateCat support multiple file formats?
Yes, MateCat supports a wide range of file formats, allowing users to translate files in up to 72 different formats.
Q: What kind of support does MateCat offer?
MateCat provides online support through a ticket system. This ensures that users can get help quickly and efficiently.
Q: Does MateCat offer a free trial?
No, MateCat does not offer a free trial. However, it is completely free to use, so you can start using it immediately without any trial period.
Q: How does MateCat handle terminology and glossaries?
MateCat improves match accuracy for glossary terms by recognizing declensions and highlighting glossary-approved translations in the source text. This helps translators use the correct terminology consistently.
Q: Can MateCat be used by enterprises?
Yes, MateCat is available for enterprises and can be fully customized to meet their specific needs. Enterprises can benefit from the upgrade without modifying their usual translation process.
Q: Is MateCat open-source?
Yes, MateCat is released as open-source software under the Lesser General Public License (LGPL).
Q: What is the background of MateCat?
MateCat was developed as part of a 3-year research project funded by the European Union’s Seventh Framework Programme. The project was led by FBK (Fondazione Bruno Kessler) and included other partners such as Translated, Université du Maine, and the University of Edinburgh.

MateCat - Conclusion and Recommendation
Final Assessment of MateCat
MateCat is a highly versatile and efficient Computer-Assisted Translation (CAT) tool that offers a plethora of benefits, making it an excellent choice for various users, particularly freelance translators, businesses, and educational institutions.
Key Benefits
- Free Usage: One of the most significant advantages of MateCat is that it is completely free, allowing freelance translators and small businesses to access advanced CAT tools without incurring costly software expenses.
- User-Friendly Interface: MateCat boasts a friendly and comfortable user interface, making it easy to install and understand. The organized system helps users quickly find the information they need.
- Advanced Features: It integrates translation memories, terminology bases, concordancers, and machine translation, which significantly improve translation accuracy and productivity. The tool also leverages statistical machine translation methods, such as self-tuning, user-adaptive, and informative MT.
- File Compatibility and Format Preservation: MateCat supports a variety of file formats and preserves the original format of the documents after translation, including numbering and paragraph spacing.
- Team Collaboration: It allows users to assign jobs to other translators, facilitating teamwork and collaboration.
- GPT-4 Integration: The recent integration with OpenAI’s GPT-4 enhances productivity by providing context-specific word meanings and improving glossary match accuracy, reducing the need for external searches and minimizing false positives in terminology quality assurance.
Who Would Benefit Most
- Freelance Translators: The free access and comprehensive features make MateCat an ideal tool for freelance translators who need professional-grade CAT tools without the financial burden.
- Small Businesses: Businesses with translation needs can benefit from the cost-effective and efficient translation process offered by MateCat.
- Educational Institutions: Students and educators in translation programs can utilize MateCat to enhance their translation skills and efficiency, especially in English Language Teaching (ELT) contexts.
- Research and Academic Purposes: Researchers and academics can leverage MateCat’s advanced features, such as translation memories and machine translation, to streamline their translation tasks.
Recommendations
Given its extensive range of features, ease of use, and free access, MateCat is highly recommended for anyone involved in translation work. Here are a few points to consider:
- Internet Requirement: MateCat requires an internet connection to function, which might be a limitation for some users.
- Editing and Proofreading: While MateCat provides high-quality translations, it still requires editing and proofreading to ensure accuracy, as some parts of the original text may not be translated perfectly.
Overall, MateCat is a valuable tool that enhances the translation process with its advanced features, user-friendly interface, and cost-free access, making it a strong recommendation for anyone seeking to improve their translation efficiency and accuracy.