GeoLibre: An Open-Source, Cloud-Native GIS Platform for Multi-Platform Geospatial Analysis

GeoLibre is a free, open-source, and lightweight cloud-native Geographic Information System (GIS) platform designed for visualizing, exploring, and analyzing geospatial data. According to project documentation, the platform operates across web browsers, desktop environments, mobile devices, and Jupyter notebooks while maintaining local data privacy.

Core Architecture and Rendering Engines

Built using Tauri v2, React, TypeScript, MapLibre GL JS, DuckDB-WASM Spatial, and deck.gl, GeoLibre allows a single project to be viewed through multiple rendering engines. Users can switch between MapLibre GL JS, Mapbox GL JS, CesiumJS, or the ArcGIS Maps SDK for JavaScript, or display them in synchronized split panes without duplicating project layers. The platform reads cloud-native formats such as COG, GeoParquet, PMTiles, FlatGeobuf, Zarr, and STAC in place.

Browser-Based Geoprocessing Tools

GeoLibre includes over 1,000 geoprocessing tools that execute entirely within the browser via a WebAssembly runtime. These tools cover various analytical domains:

• Terrain and hydrology analysis
• LiDAR and remote sensing
• Vector analysis

Executions occur locally on the user's machine without requiring a server setup or an external Python sidecar, though an optional self-hosted Python environment is available for certain tasks.

Multi-Body Planetary Mapping

Beyond Earth geography, GeoLibre supports planetary basemaps from OpenPlanetaryMap and USGS Astrogeology. Available bodies include:

• The Moon, Mars, Mercury, and Venus
• The Galilean moons (Io, Europa, Ganymede, Callisto)
• Titan, Pluto, and Charon

Each project applies a specific ellipsoid to ensure distance, area, and scale calculations match the mapped celestial body. Deep-space starfields and atmospheric effects are rendered using the Atmosphere Effects plugin.

Verification and Access

Users can verify project details, installation steps, and source repositories directly through the official GitHub repository (`opengeos/GeoLibre`) or documentation published at `geolibre.app`. Academic users can cite the platform using its Zenodo archive entry.