Open Source QGIS Alternatives

    The best open source alternative to QGIS is GRASS GIS, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to QGIS and ten of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to QGIS are Mapserver (Free, Open Source), SAGA GIS (Free, Open Source), MapWindow GIS (Free, Open Source) and uDig (Free, Open Source).

    This page was last updated Jul 27, 2021

      • FreeOpen Source
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      • Linux
      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.
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      GRASS GIS vs QGIS opinions
      pros, cons and recent comments
      Equaly or even more powerful. The only downside is that it's native GUI has a learning curve. But it handles the processes way better.
      Positive comment over 1 year ago

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      • FreeOpen Source
      • Mac
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      MapServer is an Open Source platform for publishing spatial data and interactive mapping applications to the web.
      No screenshots yet
      Some users think Mapserver is a great alternative to QGIS, some don't.


      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      SAGA - System for Automated Geoscientific Analyses - is a Geographic Information System (GIS) software with immense capabilities for geodata processing and analysis.
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      • FreeOpen Source
      • Windows
      MapWindow is a fully free and open source geographic information system project. It includes an open source programming component, MapWinGIS ActiveX, and an extensible desktop application that supports plug-ins written in .NET (C# and VB.NET).
      • FreeOpen Source
      • Windows
      uDig is a GIS software program produced by a community led by Canadian-based consulting company Refractions Research. It is based on the Eclipse platform and features full layered open source GIS. It is written in Java and released under GNU Lesser General Public License.
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      • FreeOpen Source
      • Windows Mobile
      • Android
      • iPhone
      • iPad
      Input is based on QGIS which means you can set up projects easily from the desktop. Free and open source Support for custom forms Capture location-related media (e.g.
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      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      Mapnik is a Free Toolkit for developing mapping applications. Above all Mapnik is about making beautiful maps. It is easily extensible and suitable for both desktop and web development. - C++/Python GIS toolkit
      No screenshots yet
    1. Esri Geoportal Server is a free, open source product that enables discovery and use of geospatial resources including datasets, rasters, and Web services.
      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      GeoNode is a web-based application and platform for developing geospatial information systems (GIS) and for deploying spatial data infrastructures (SDI).
      No screenshots yet
      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      OpenJUMP is an open source Geographic Information System (GIS) written in the Java programming language. It is developed and maintained by a group of volunteers from around the globe.
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    Showing 10 of 10 alternatives