terriajs

TerriaJS is an open-source JavaScript library for building rich, web-based geospatial data platforms that support both 2D and 3D visualization. It is designed for developers and data publishers who need to create interactive, customizable catalogs of geospatial datasets (like maps, imagery, and 3D terrain) for public or private use. Its interest lies in enabling complex, multi-layered spatial data exploration without requiring deep GIS expertise, powering major platforms like NationalMap and Digital Earth Australia.