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Quantum GIS (QGIS) is a user friendly Open Source Geographic Information System (GIS) that runs on Linux, Unix, Mac OSX, and Windows. QGIS supports vector, raster, and database formats. QGIS is licensed under the GNU General Public License. QGIS lets you browse and create map data on your computer. ... [More]
OpenLayers is a web mapping framework, allowing users to pull in disparate sources of data and display them in an AJAX mapping interface.
OpenStreetMap is a free editable map of the whole world. It is made by people like you. OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth.
MapServer is an Open Source platform for publishing spatial data and interactive mapping applications to the web.
GDAL is a translator library for raster geospatial data formats. The related OGR library (which lives within the GDAL source tree) provides a similar capability for simple features vector data.
GRASS GIS, commonly referred to as GRASS (Geographic Resources Analysis Support System), is a free Geographic Information System (GIS) software used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS GIS is currently ... [More]
JOSM is an editor for OpenStreetMap written in Java 1.5. The current version supports stand alone GPX tracks, GPX track data from the OSM database and existing nodes, line segments and metadata tags from the OSM database.
GeoTools is an open source (LGPL) Java code library which provides standards compliant methods for the manipulation of geospatial data, for example to implement Geographic Information Systems (GIS). The GeoTools library implements Open Geospatial Consortium (OGC) specifications as they are ... [More]
Mapnik is a Free Toolkit for developing mapping applications. It's written in C++ and there are Python bindings to facilitate fast-paced agile development. It can comfortably be used for both desktop and web development
Marble is a Virtual Globe and World Atlas that you can use to learn more about Earth: You can pan and zoom around and you can look up places and roads. A mouse click on a place label will provide the respective Wikipedia article. Marble is also a light weight generic geographical map component ... [More]