#GIS QGIS, also known as Quantum GIS, is a free and open-source geographic information system (GIS) software. It allows users to create, edit, visualize, analyze, and publish geospatial information on various platforms. Here are some key features of QGIS: 1. User-friendly Interface: QGIS has an intuitive interface that makes it easy for users to navigate and perform various GIS tasks. 2. Data Management: It supports a wide range of vector, raster, and database formats, allowing users to import and manage different types of geospatial data. 3. Mapping and Visualization: QGIS offers tools for creating high-quality maps and visualizations. Users can symbolize data using different colors, styles, and labels to represent geographic features effectively. 4. Analysis Tools: QGIS provides a comprehensive set of analysis tools for spatial querying, geoprocessing operations, terrain analysis, proximity analysis, network analysis, and more. 5. Customization: Users can customize the software by creating plugins or using Python scripting to extend its functionality according to their specific needs. 6. Integration with Other Software: QGIS can integrate with other open-source GIS software like GRASS GIS and SAGA GIS. Additionally, it supports interoperability with proprietary software such as ArcGIS through various file formats. 7. Cartographic Output: QGIS allows users to generate professional maps suitable for printing or digital publication by offering layout design tools and map composer functionality. 8. Community Support: Being an open-source project, QGIS benefits from a large community of developers and users who actively contribute to its development and provide support through forums, documentation, tutorials, etc. Overall, QGIS is a versatile GIS software that caters to the needs of beginners as well as advanced users in fields like environmental science, urban planning, agriculture management, transportation planning, natural resource exploration, etc. # Open Source GIS Tools See a list of [[Open Source GIS]] tools ## References [[@WelcomeQGISProject|GIS Official Website]] [[@it34QGISBeginnerPart2022|Make your first QGIS Map]] [[@it34QGISBeginnerPart2022a|QGIS working with vector data]] [[@it34QGISQuickTips2022|QGIS Working with DB Manager]] [Global Surface Water Mapping Data](https://global-surface-water.appspot.com/download)