Matecat vs Supervertaler Workbench

Matecat is a free, open-source online computer-assisted translation tool for translators, language service providers, companies, and enterprise teams. It uses translation memories and machine-translation matches to reduce the text translators need to translate, and offers adaptive machine translation from ModernMT in more than 200 languages. The tool supports document and website translation, glossary tools, and real-time teamwork: teams can assign jobs, discuss work in comments, and divide projects among translators. Matecat states that it supports 80 file formats, while the hosted service works with XLIFF out of the box and other formats may require Matecat Filters. REST APIs let users create projects and check their status; API credentials require contacting support with a use description. Its open-source server can be self-hosted. For hosted use, Matecat says browser-to-server communications use SSL, originals and translations are stored long term, and public segments may provide matches to others. It runs in a desktop browser, not on mobile devices. The listed plan is free, with unlimited features, users, and projects.

Supervertaler Workbench is a free standalone CAT tool that combines AI translation with traditional computer-assisted translation workflows. It supports AI translation, batch translation, chat, prompts, image context and AI proofreading, as well as local models through Ollama. Listed providers include OpenAI, Anthropic Claude, Google Gemini, Mistral AI, DeepSeek, OpenRouter, Ollama and custom OpenAI-compatible endpoints. Translation features include fuzzy matching, TMX import and concordance search; terminology tools include termbases, automatic term highlighting and TermLens. DOCX and TXT are supported directly, with additional formats through Okapi, including IDML, HTML, XLIFF, PO, XLSX and PPTX. Documentation describes exchange workflows for memoQ, Trados Studio, Phrase and CafeTran. The privacy policy says documents, termbases and translation memories stay on the user's machine, while AI requests go directly to the selected provider when an AI action is triggered. Ollama processes data locally. Workbench runs on Linux, macOS and Windows and supports offline desktop use. Its maker says it is no longer actively developed, though genuine bugs may still be fixed and releases still go out.