Disaster Ninja is a tool developed by Kontur in collaboration with the Humanitarian OpenStreetMap Team (HOT) to enhance disaster response efforts through improved mapping efficiency. It streamlines the preparation and prioritization of mapping tasks by integrating critical data layers, reducing the time required for emergency response coordinators to assess situations and deploy mapping campaigns. This tool offers features such as rapid intelligence gathering, automated alerts, and analytical layers that highlight population density and infrastructure mapping, aiding both immediate disaster response and broader OpenStreetMap community efforts. By facilitating the identification of under-mapped areas and suggesting local mapping communities, Disaster Ninja supports both local and remote mappers in improving OpenStreetMap data. The tool's analytical capabilities include visualizing the relationship between population density and OpenStreetMap object distribution, assessing building and road coverage, and understanding mapping activity and data antiquity. It also emphasizes the importance of maintaining a global population dataset to inform mapping priorities, demonstrating Kontur's commitment to a tool driven by community needs and ongoing user feedback.