The Humanitarian Data Exchange (HDX) is an open platform operated by the UN Office for the Coordination of Humanitarian Affairs (OCHA). It brings together data relevant to humanitarian response from hundreds of organizations into one searchable catalog covering the whole world.
For GIS users it is especially useful for standardized global layers: the Common Operational Datasets include administrative boundaries and population statistics for nearly every country, alongside crisis-specific data on displacement, food security, and infrastructure. Most data is openly licensed and easy to pull into a map.
