Open Source ArcGIS Alternatives

    The best open source alternative to ArcGIS is QGIS, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to ArcGIS and 11 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to ArcGIS are R (programming language) (Free, Open Source), GRASS GIS (Free, Open Source), OpenLayers (Free, Open Source) and PostGIS (Free, Open Source).

    This page was last updated Jul 27, 2021

    1. QGIS, formerly Quantum GIS, is a user friendly open source Geographic Information System (GIS) licensed under the GNU General Public License that runs on Linux, Unix, Mac OSX, and Windows and supports numerous vector, raster, and database formats and functionalities.
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      QGIS vs ArcGIS opinions
      Almost everyone thinks QGIS is a great alternative to ArcGIS.
       all • positive • negative      relevance • date
      QGIS can read geodatabases. The software is frequently updated and print composer is very good alternative to ArcGIS for map layouts.
      Top positive comment  over 4 years ago

      4
      The GUI is pretty simple and intuitive and it runs decent on windows (at least as fast as ArcMap), but on GNU/Linux it flies. And since the license is GPL you can use it for different purposes (from educational to research or commercial) without worrying for a sue.
      Top positive comment  over 1 year ago

      0
      caiocco QGIS runs on multiple platforms, has a strong community and is becoming more and more mature. You can do almost everything using QGIS and it integrates very well with GRASS and SAGA for additional power.
      Positive comment over 1 year ago

      0
      yes. because for linux this is the only option available.
      Positive comment almost 3 years ago

      -1
      u can do everything in qgis what u can do in ArcGIS but also in QGIS u have full acces to the source code and all is free
      Positive comment over 3 years ago

      0
      Closest in terms of UI, and gets a lot of extra power from integration with other packages like Grass and orfeo.
      Positive comment over 3 years ago

      0
      Free with same functionality.
      Positive comment almost 4 years ago

      0
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      7 of 9 comments
    2. R is a free software environment for statistical computing and graphics.
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      R (programming language) vs ArcGIS opinions
      pros, cons and recent comments
      chtfn Even though this programming language is not specific to spatial data, the vast collection of R packages available for importing, processing, analysing, converting and visualising spatial makes it an excellent alternative that can create fully reproducible processes. Searching "R Spatial" online will bring up a wealth of books, tutorials and resources.
      Positive comment 11 months ago

      0


      • FreeOpen Source
      • Mac
      • Windows
      • 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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      Almost everyone thinks GRASS GIS is a great alternative to ArcGIS.
      • FreeOpen Source
      • Online
      • Self-Hosted
      OpenLayers is a high-performance, feature-packed library for all your mapping needs. FEATURES Tiled Layers Pull tiles from OSM, Bing, MapBox, Stamen, MapQuest, and any other XYZ source you can find. OGC mapping services and untiled layers also supported.
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      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      • BSD
      PostGIS adds support for geographic objects to the PostgreSQL object-relational database.
      No screenshots yet
      PostGIS vs ArcGIS opinions
      Some users think PostGIS is a great alternative to ArcGIS, some don't.
      While PostGIS can collect GIS data, its primary functionality is that of a database and doesn't provide most of the feature set that ArcGIS has.
      Negative comment about 6 years ago

      4


      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      MapServer is an Open Source platform for publishing spatial data and interactive mapping applications to the web.
      No screenshots yet
      • 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
      • 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
      • 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 11 alternatives