JupyterGIS is a JupyterLab extension designed for collaborative GIS (Geographical Information System) work, enabling multiple users to work on the same geospatial project in real-time. It facilitates teamwork by allowing shared editing, visualization, and annotation of map layers and spatial data directly within the JupyterLab environment. The extension supports seamless import and export of QGIS project files, preserving styles, data sources, and project settings for smooth transitions between desktop GIS work and cloud-based collaboration. Users can also integrate Python geospatial libraries like GeoPandas, Xarray, and Rasterio to perform custom analyses and automate workflows, making JupyterGIS a robust platform for both collaborative mapping and advanced geospatial analysis.