OpenJUMP is an open-source Geographic Information System (GIS) software designed for viewing, analyzing, and editing spatial data. It supports a wide range of vector formats and offers advanced data processing features such as spatial queries, data validation, and thematic mapping. With a user-friendly interface, OpenJUMP is suitable for both novice and experienced GIS users. The software is maintained by a community of developers who continually enhance its capabilities through plugins and updates. OpenJUMP is platform-independent and can be operated on Windows, macOS, and Linux systems.