Our score: 8.9 User satisfaction: 97%

What is GRASS GIS?

GRASS GIS is an open-source and free GIS solution that offers geospatial analysis and data management, maps and graphics production, image processing, visualization and spatial modeling capabilities. A project of OSGeo, the platform works well for academic institutes and various commercial settings around the globe. Environmental consulting companies and government agencies can also take advantage of the open-source software to analyze location-based data and manage it efficiently.

The software is available for all major operating systems i.e. Windows, Linux and Mac OS. The platform is an official project by OSGeo (Open Source Geospatial Foundation) and is distributed under GNU GPL (General Public License) V2, which means that anyone is able to use the software and has access to the source code for further customization.

Overview of GRASS GIS Benefits

The biggest advantage of GRASS GIS over other similar software is that it is open source and freely-available to users. It was originally developed by the US Army as a tool for environmental planning and land management. With the passage of time, the simple tool evolved into a multi-function software that offers a wide range of utilities useful for academic and scientific research institutes, government institutes, NGOs as well as commercial settings. The system is comprised of 350+ modules that allow users to render maps and images and manage location-based data.

It can also be used for vector and raster data, multispectral image processing and spatial data creation, storage and manipulation. It supports both a graphical user interface and command line syntax and can interface with various printers, digitizers, plotters and databases. The software supports workgroups using the concept of mapset/location and is able to share data over the Network File System. Teams can also keep locations on a central server with underlying mapsets and work simultaneously in the same project DB.

GRASS GIS offers powerful capabilities, including raster, 3D-raster (voxel), vector, DTM and point data analysis, image processing,  geocoding, visualization, map creation, geostatistics, temporal framework, erosion modeling, landscapestructure analysis, watershed analysis and solution transport. The software also supports various database interfaces, including SQLite, DBF, PostgreSQL, ODBC and MySQL. The latest release of the software by default manages attributes in SQLite format and features a full temporal framework.

Overview of GRASS GIS Features

  • Data management
  • Image processing
  • Graphic production
  • Spatial modeling
  • Visualization
  • Open-source
  • GPL V2
  • Map and image rendering
  • Raster and vector data manipulation
  • Multispectral image data processing
  • GUI and command line
  • Workgroup support
  • Raster and 3D-raster analysis
  • Vector analysis
  • Point data analysis
  • Image processing
  • DTM analysis
  • Geocoding
  • Geostatistics
  • Temporal framework
  • Erosion modeling
  • Landscape structure analysis
  • Solution transport
  • Watershed analysis

GRASS GIS Position In Our Categories

Bearing in mind companies have distinctive business requirements, it is prudent that they avoid settling on an all-encompassing, ”best” software. However, it would be difficult to try to pinpoint such application even among sought-after software systems. The practical thing to undertake should be to spell out the various major factors that need examination like key features, price plans, technical skill competence of the employees, organizational size, etc. The second step is, you must do your research fully. Go over these GRASS GIS analyses and check out each of the software systems in your shortlist more closely. Such comprehensive research can make sure you steer clear of unfit apps and select the system which meets all the function you require company requires.

Position of GRASS GIS in our main categories:

TOP 10

GRASS GIS is one of the top 10 Geographic Information Systems - GIS products

If you are considering GRASS GIS it may also be sensible to examine other subcategories of Geographic Information Systems - GIS gathered in our database of SaaS software reviews.

There are well-liked and widely used applications in each software category. But are they automatically the best fit for your enterprise’s specific needs? A popular software product may have thousands of subscribers, but does it present what you require? For this reason, do not blindly shell out for popular systems. Read at least a few GRASS GIS Geographic Information Systems - GIS reviews and think about the elements that you want in the software such as the cost, main functionality, available integrations etc. Then, shortlist a few solutions that fit your needs. Check out the free trials of these platforms, read online reviews, get clarifications from the vendor, and do your investigation meticulously. This profound homework is sure to aid you choose the finest software platform for your organization’s specific wants.

How Much Does GRASS GIS Cost?

GRASS GIS Pricing Plans:

Free Trial



GRASS GIS is a free-to-use solution, and comes with no enterprise pricing fees to worry about.

User Satisfaction

Positive Social Media Mentions 209
Negative Social Media Mentions 3

We realize that when you make a decision to buy Geographic Information Systems - GIS it’s important not only to see how experts evaluate it in their reviews, but also to find out if the real people and companies that buy it are actually satisfied with the product. That’s why we’ve created our behavior-based Customer Satisfaction Algorithm™ that gathers customer reviews, comments and GRASS GIS reviews across a wide range of social media sites. The data is then presented in an easy to digest form showing how many people had positive and negative experience with GRASS GIS. With that information at hand you should be equipped to make an informed buying decision that you won’t regret.

Technical details

Devices Supported

  • Windows
  • Linux
  • Mac


  • On Premise

Language Support

  • English

Pricing Model

  • Free

Customer Types

  • Small Business
  • Medium Business
  • Freelancers

What Support Does This Vendor Offer?

  • email
  • phone
  • live support
  • training
  • tickets

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What are GRASS GIS pricing details?

GRASS GIS Pricing Plans:

Free Trial



GRASS GIS is a free-to-use solution, and comes with no enterprise pricing fees to worry about.

What integrations are available for GRASS GIS?

GRASS GIS offers several SQL integrations (SQLite, PostgreSQL, DBF, MySQL, ODBC).


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Reviewed By Jenny Chang
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