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GRASS GIS

GRASS GIS (Geographic Resources Analysis Support System) is an open source, free software (FOSS) Geographical Information System (GIS) with raster, topological, vector, image processing, and visualization functionality. Used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization, GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies.

MapWindow GIS

MapWindow GIS

MapWindow is a fully free and open source geographic information system project. It includes an open source programming compon ...

PostGIS

PostGIS

PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS "spatially enable ...

SAGA GIS

SAGA GIS

SAGA - System for Automated Geoscientific Analyses - is a Geographic Information System (GIS) software with immense capabiliti ...

MapLarge

MapLarge

Beautiful, User Friendly online mapping software that scales to big data. The MapLarge API enables user-driven, low latency, i ...

MICRODEM

MICRODEM

MICRODEM is a freeware microcomputer mapping program written by Professor Peter Guth of the Oceanography Department, U.S. Nava ...