ArcGIS is a mapping and spatial data analysis software developed by Esri (Environmental Systems Research Institute). It is a powerful tool used by businesses, governments, and organizations to understand and analyze spatial data and relationships, and to create maps and visualizations that communicate this information effectively.

ArcGIS includes a range of tools and functionality for working with geographic data, including tools for data collection, editing, and analysis; tools for creating and customizing maps; and tools for sharing and publishing spatial data and maps. It can be used to create interactive maps, perform spatial analysis, and build custom geospatial applications.

ArcGIS is available in several different versions, including ArcGIS Desktop, which is a full-featured mapping and spatial analysis software suite; ArcGIS Online, which is a cloud-based mapping and analysis platform; and ArcGIS Pro, which is a more powerful and specialized mapping and spatial analysis tool.