Interactive, thoroughly customizable maps in the browser
Geographic library
Toolkit for working with and mapping geospatial data
Open-source JavaScript library for mobile-friendly interactive maps
Geodesy based library (geodetic and geocentric functions)
Geolocation Postcode Algorithm
A wildfire decision support system and visualization tool from Emxsys.
SVG Based WWW Mapping Module Patch for WebKit
OSGeo project deegree