Open-source software refers to software whose source code is freely available for anyone to view, modify, improve, and distribute under an open-source license. It encourages collaboration, innovation, transparency, and cost-effective solutions. In the field of geoinformatics and disaster management, open-source software has become an essential tool for collecting, analyzing, visualizing, and sharing geospatial information required for disaster risk reduction, preparedness, response, and recovery. The primary characteristic of open-source software is that it can be used without expensive licensing fees. Government agencies, research institutions, non-governmental organizations, and local communities can customize the software according to their specific disaster management requirements. This flexibility is particularly beneficial in developing countries where financial resources for proprietary software may be limited. Several open-source Geographic Information System (GIS) software packages are widely used