ArcGIS is a comprehensive Geographic Information System (GIS) software developed by Esri. It's a powerful platform used for creating, managing, analyzing, and visualizing geographic data. ArcGIS provides a suite of tools and capabilities that enable users to work with spatial information effectively. It allows for the creation of detailed maps, analysis of geographic patterns, management of geographic data, and the development of applications to solve real-world problems across various industries like urban planning, natural resource management, public health, and more. ArcGIS encompasses a range of applications, including desktop, web, and mobile, catering to different user needs and facilitating efficient decision-making based on spatial information.