gvSIG Alternatives

gvSIG

gvSIG is a free open-source GIS project, characterized by a user-friendly interface, and capable of quickly accessing the most usual raster and vector formats. In the same view it includes local as well as remote data through a WMS, WCS or WFS.It is aimed at users of geographical information, professionals or civil servants (town halls, councils, regional councils or ministries) from any part of the world (at the moment its interface is in Spanish, Valencian, English, German, Czech, Chinese, the Basque language, Galician, French, Italian, Polish, Portuguese and Rumanian).

Features:

Portable: it runs under different hardware / software platforms, Linux, Windows and Mac OS. Its programming language is Java.
Modular: it is expandable to new functions through the development of plug-ins.
Open-source: the original source code has been released under GNU-GPL license.
Interoperable with solutions that have already been implemented: it can access data of other proprietary programs, such as ArcView, AutoCAD or Microstation without the need to change their format.
Subject to standards: it follows the guidelines set out by the Open Geospatial Consortium (OGC) and the EU.