Free, open-source CAT tool with fuzzy matching, glossary support, and team project functionality.
OmegaT is a free, open-source computer-assisted translation tool that has been actively developed since 2000, offering professional-grade translation memory, fuzzy matching, glossary management, and multi-file project support at zero cost. Written in Java, OmegaT runs natively on Windows, macOS, and Linux, and supports a wide range of file formats through its extensible plugin architecture. The tool's team project feature enables collaborative translation workflows using shared version control repositories (SVN or Git), making it a practical choice for distributed teams working on structured projects. OmegaT is widely used by freelance translators, academic researchers, NGOs, and localization teams in markets where commercial CAT tool licensing costs create barriers to entry. The active open-source community maintains documentation in dozens of languages and contributes regular improvements, and the tool is used as a teaching instrument at many university translation programs worldwide.