Welcome to the MapWindow GIS Open Source Project

The MapWindow GIS project includes a free and open source desktop geographic information system (GIS) with an extensible plugin architecture; a GIS ActiveX control; and C# GIS programmer library called DotSpatial. We would be happy to have you join our project. Feel free to browse this site, or follow the links below depending on if you are a GIS user, GIS programmer, or potential project contributor.

Desktop Applications
Free, ready-to-use spatial data viewer and geographic information system that can be modified and extended using plugins. MapWindow 4 is built on the MapWinGIS programmer tool (see below).
A lightweight open source desktop GIS for Microsoft Windows that is built upon the DotSpatial Library. Testing release.
Free hydrologic data software for data discovery, download, visualization, editing, and integration with other modeling tools.
Programmer Tools
MapWinGIS.ocx is used to provide GIS/mapping functionality to user-written Windows Forms based applications. Code can be written in Visual Basic 6, VB .NET or C# and can be commercial or open source.
Free GIS programmer library and tools for C# and .NET based applications. The DotSpatial library is written in C# and can be used in commercial or open source projects.
Project Development
Discussion Forums Several active discussion forums are available for users of the MapWindow projects. A list of discussion forums, including forums for team members and programmers is here.
Source Code Access All of the source code for the MapWindow project software tools is Open Source. License information and source code can be accessed here.
Issues and Bugs We are not ashamed of our issues, bugs, and feature request lists. Please view them here. Perhaps you can help us make this software better?

For more information...

Start by reading our project documentation and learn why we created MapWindow. Here are answers to a few frequently asked questions, and the best place to find answers to your question is on our project discussion forums. You can also sign up for our mailing lists to receive occasional e-mail about new upgrades, features and downloads.

If you have any unanswered questions, please contact Dan Ames at the Idaho State University Geospatial Software Lab.