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QGIS (formerly Quantum GIS) is a free and open source geographic information system.https://dudodiprj2sv7.cloudfront.net/product-logos/MH/oo/FW9N3U8H9T3U.PNGFree, powerful software for GISWithin my department, we do a lot of GIS. About half of my coworkers use ArcGIS and half use QGIS. QGIS addresses the problems associated with licensing. It is open source software, so no licensing is required. It is also much easier to install than ArcGIS and (in my experience) crashes less often than ArcGIS. Less crashing and faster install times result in more efficiency and productivity.,QGIS is free and very easy to install, and no license is required. Not having to deal with licensing issues has saved me considerable time and frustration. The QGIS help community is very active, and it is easy to find answers. Although QGIS does not offer support in the way that ArcMap does, I was always able to google my question and find either a tutorial or website that solved my problem. QGIS seems to crash less often than ArcMap. It is super annoying to have a program crash when you are in the middle of a project, but I have not had any issues with QGIS. Also, QGIS is updated frequently.,Making maps in QGIS is a bit clunky. I also find it to be extremely unintuitive. For basic GIS, it is great, but I would much rather make maps (for publication purposes) in ArcGIS. Editing and adding feature layers is not very intuitive. Changing colors of added point or line features is a rather convoluted process. ArcGIS has a huge selection of online courses, and if you have the appropriate license, you can access most for free. I found these to be very helpful when dealing with map projections and other issues. However, QGIS does not have a large library of courses specifically made for that program.,8,Because QGIS is free, it saves our organization money. QGIS is easy to install on Windows/Linux/Mac platforms. Our department uses Linux servers, but many of the employees use PCs or Macs. Since QGIS works on all these systems, we can open QGIS projects on any of these systems and continue our work. The one negative point I have about QGIS is its cartography tools. I frequently have to make maps that are suitable for publication. I spent an inordinate amount of time attempting to make a few maps in QGIS, but I ended up making them in ArcGIS because it was much faster that way. Thus, the use of QGIS sometimes results in a loss of work efficiency due to troubleshooting.,ArcGIS,Eclipse, Skype, Zoom Video WebinarQGIS gives you a world of options for space processing from the beginning and for freeWe use QGis as a tool aimed at facilitating the management of geographic information for the territorial development of the Bolivarian University of Venezuela. It does this through monitoring, analysis, development and assessment of academic, sociopolitical, administrative and territorial processes in correspondence with regional geopolitical axes. This type of Geographic Information Systems (GIS) structure is an effective tool that allows superimposing geographically referenced information, and visualizes the relationships between the data obtained and the evaluation of the spatial interaction between the information layers represented. In this way, we can reflect, relate and describe geographic phenomena of any kind and their interrelation with the Bolivarian University of Venezuela at the national level.,Documentation and technical support. With this software you will receive all the help you need, if you get stuck in a function you can ask in forums dedicated to QGIS, help manuals including interacting with the help staff. It is updatable. As some developers share their new creations , the ones that already exist will be updated along with the new, so we know that this software will never be obsolete. It has support for PostgreSQL and PostGIS extensions. It also allows a file management in vector formats like Grass, Mapinfo, Shapefile, and others, and can also read several raster files in JPG, TIFF GeoTiff, Mapinfo and Grass. It can be used as a graphical environment for Sig Grass, which uses a large amount of analysis power, using an environment that is easier to understand and use.,The Raster data management is surpassed by ArcGIS, its main competitor. Although QGIS + GRASS put up a good fight, there is always some way in which ArcGIS makes it easier; if not for added values, then due to the difficulty of compatibility of plugins with respect to recent versions. An online data arsenal for QGIS. With the OpenLayers plugin it allows many background layers but there is not much more. Have a more friendly and comprehensive tool for accessing plugins, something like a Marketplace, would make things easier, because there are solutions for everything with a specialization focus and should be easier to find. Statistical tools should be more educational,10,Price: QGIS is available for free for Windows, Mac OS and Linux. It can even be installed on Android. Cost in employee training: The edition in QGIS is very simple and easy to use. New functions available in the community: In QGIS you can add new functions through plugins that try to solve multiple daily problems of our own organization.,ArcGIS,PostgreSQL, CartoDB, ArcGISQGIS a great solution for nonprofit organizationsQGIS was used by select researchers who utilized the mapping software for social and economic data visualization in line with our organization's mission and views on children and adolescent health. This is a low cost/free option for us to create reports and tools for grantors and funders, as well as legislators.,Demonstrates geographic-centric data for all levels of readers Makes complicated data more easily digestible and reviewable Increases the ability to explain data to funders, grantors, and stakeholders,QGIS is hard to use for beginners. A better tutorial and clearer online tutorials could improve this. Labeling interface is overly complicated. Allowing users to manually add labels to relevant items could be helpful. QGIS should have more "wizards" that can easily import common data points (median income, population density, etc) and cross tabulate that with other categories easily from uploaded data.,7,QGIS gives us more impactful data on children and maternal health issues, which in turn has helped us establish more programs, relationships, and funding opportunities because of the excellent data presentations we can give. QGIS has allowed our staff to improve their data analysis skills, improving our workforce across the board, with or without the direct use of geographic data. QGIS has required a lot of staff time to learn, but the ROI on time spent vs the reports we produced afterward has been well worth it.,ArcGIS,LastPass, IBM SPSS, ArcGISA Great Option for Users of GISQGIS has helped us to make all the cartography and maps to do the spatial analysis or urban areas, with the tools for edit, create, customize and print, we have build maps of the entire city emphasizing the maintenance of the highways, sidewalks, and recreational spaces. The software is used only in the planning area with some implications in others spaces like administration or any office who needs gathering information some particular place or of a specific category of urban space. Qgis it is a really good tool to makes plans, organizes information, manages spatial data, makes maps, and for explaining the people who work in the company or general public which are the places where we need to act and how these are distributed in the city.,QGIS can manage virtually any kind of spatial data that means you can manage shapefiles, tab files, raster files, cad files, and so many other formats that can help you to make the maps and analyze data in the best way. With QGIS you can add or modify the tools, for example, if you know some programming experience you can modify the software and include your own tool or extension, this can be very useful if you are an entrepreneur who it is starting to involve in the GIS world. QGIScome GNU license and that means that anybody can easily download the software on his computer and manage all the information available on the internet of spatial data or share information with other people who manage the software or has some interest of build some applications or extensions to it.,Being an GNU software has some limitations and one of them it is the instability of the software, it can be closed randomly or without any warning and this can be so annoying if you are doing a very hard work, this happens because you do not have any professional customer support, you only have it from other users. The continuous actualizations can be very annoying because the series bring to fast and you can manage the version 2.14 a little and quickly you can have available, who has not so many modifications and the most of time if not even necessary. You have to be aware of the data, with GNU license the data that you download can be wrong or cannot have all the information that you need, sometimes you could find errors in "datum" o coordinates you have to be aware because the data that it uses is made all over the world without any supervision, virtually anyone can put wrong data for the users, and you do not know until you work with it.,7,QGIS it is a very useful software to work with spatial data in the way the software helps us to make the plans for maintenance of the urban spaces of the city, we can build this by adding data to the shapefiles and later, selecting which area needs to be prioritized and in what order we have to send the workers to their jobs, and the data bring us the opportunity to do a better use of our personal and budget. The software is very useful making models of any kind of situation that happens in a city, in our case with the Tranus extension we can see which are the roads with more traffic and can choose which one has to have a regular or continuous maintenance or which one has to be used only two or three times per month, making it more effective for the uses of our resources. In the planning area QGIS can be so useful because it allows to select which areas of the city has the major budget allocation and why that happens, with this data we can define which areas that need more money to keep in the best possible condition and which ones do not need so much attention from the government, because the actual condition of them it is really good.,,ArcGIS, AutoCAD, MapInfo ProPowerful GIS in developmentQGIS is a very complete tool for spatial analysis as well as the elaboration of topographic and thematic cartography. It seems to me an excellent advantage that QGIS allows the connection with R, which is also open source statistical software, allowing to directly relate the data of the various variables with their spatial location.,QGIS is an excellent open source GIS tool that has been strengthening over the years. It is not necessary to pay an expensive license to use all the options that it offers us and that is a great benefit, especially to professionals who use the GIS for the development of our work and research It has a friendly interface, it is very easy to use, especially if you have previously handled a GIS tool. I also like the great variety of functions that it offers us and that allows us to solve almost any problem.,This software unfortunately tends to be unstable, because sometimes unexpected closures occur. At times I have had problems because I do not execute certain actions and I must restart the program in order to execute the action satisfactorily. On the other hand, the quality of the cartographic output is weak compared to other software.,8,You have to invest time in the training of the staff, both for the beginners, as for the users of other GIS software Improved our response times, which is a benefit for the company It does not require investing a large sum of money, being a free software This program tends to be a bit unstable. With large amount of data tends to be slow.,ArcGIS,ArcGIS
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QGIS
19 Ratings
Score 8.2 out of 101
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QGIS Reviews

QGIS
19 Ratings
Score 8.2 out of 101
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Maike Holthuijzen profile photo
September 18, 2018

QGIS Review: "Free, powerful software for GIS"

Score 8 out of 10
Vetted Review
Verified User
Review Source
Within my department, we do a lot of GIS. About half of my coworkers use ArcGIS and half use QGIS. QGIS addresses the problems associated with licensing. It is open source software, so no licensing is required. It is also much easier to install than ArcGIS and (in my experience) crashes less often than ArcGIS. Less crashing and faster install times result in more efficiency and productivity.
  • QGIS is free and very easy to install, and no license is required. Not having to deal with licensing issues has saved me considerable time and frustration.
  • The QGIS help community is very active, and it is easy to find answers. Although QGIS does not offer support in the way that ArcMap does, I was always able to google my question and find either a tutorial or website that solved my problem.
  • QGIS seems to crash less often than ArcMap. It is super annoying to have a program crash when you are in the middle of a project, but I have not had any issues with QGIS. Also, QGIS is updated frequently.
  • Making maps in QGIS is a bit clunky. I also find it to be extremely unintuitive. For basic GIS, it is great, but I would much rather make maps (for publication purposes) in ArcGIS.
  • Editing and adding feature layers is not very intuitive. Changing colors of added point or line features is a rather convoluted process.
  • ArcGIS has a huge selection of online courses, and if you have the appropriate license, you can access most for free. I found these to be very helpful when dealing with map projections and other issues. However, QGIS does not have a large library of courses specifically made for that program.
QGIS is great for companies or individuals who are on a budget but still need powerful GIS software. QGIS is excellent in that it can consume many data formats and basically has all the same capabilities as ArcGIS. In addition, since QGIS is cross-platform it is Linux and Mac friendly, making it more versatile than ArcMap, which only works on Windows machines. In my opinion, it is a little less beginner friendly, so I'd recommend it more to those who have some previous experience with GIS. I would, however, not recommend it for those who mainly want to create maps. I found the map making feature in QGIS very cumbersome.
Read Maike Holthuijzen's full review
Eduardo Guillén profile photo
September 05, 2018

Review: "QGIS gives you a world of options for space processing from the beginning and for free"

Score 10 out of 10
Vetted Review
Verified User
Review Source
We use QGis as a tool aimed at facilitating the management of geographic information for the territorial development of the Bolivarian University of Venezuela. It does this through monitoring, analysis, development and assessment of academic, sociopolitical, administrative and territorial processes in correspondence with regional geopolitical axes. This type of Geographic Information Systems (GIS) structure is an effective tool that allows superimposing geographically referenced information, and visualizes the relationships between the data obtained and the evaluation of the spatial interaction between the information layers represented. In this way, we can reflect, relate and describe geographic phenomena of any kind and their interrelation with the Bolivarian University of Venezuela at the national level.
  • Documentation and technical support. With this software you will receive all the help you need, if you get stuck in a function you can ask in forums dedicated to QGIS, help manuals including interacting with the help staff.
  • It is updatable. As some developers share their new creations , the ones that already exist will be updated along with the new, so we know that this software will never be obsolete.
  • It has support for PostgreSQL and PostGIS extensions. It also allows a file management in vector formats like Grass, Mapinfo, Shapefile, and others, and can also read several raster files in JPG, TIFF GeoTiff, Mapinfo and Grass.
  • It can be used as a graphical environment for Sig Grass, which uses a large amount of analysis power, using an environment that is easier to understand and use.
  • The Raster data management is surpassed by ArcGIS, its main competitor. Although QGIS + GRASS put up a good fight, there is always some way in which ArcGIS makes it easier; if not for added values, then due to the difficulty of compatibility of plugins with respect to recent versions.
  • An online data arsenal for QGIS. With the OpenLayers plugin it allows many background layers but there is not much more.
  • Have a more friendly and comprehensive tool for accessing plugins, something like a Marketplace, would make things easier, because there are solutions for everything with a specialization focus and should be easier to find.
  • Statistical tools should be more educational
Freedom and access: That QGIS is free is not the most important thing in our opinion. The biggest advantage of using QGIS is access, the ability to provide a powerful tool to a large number of users on any type of computer. In a changing world, decisions have to be made by groups of people on the analysis of data in limited periods of time; QGIS allows you to work spatial data, share it and receive opinions quickly and easily. The software is not limited to a single computer, but to any computer. The analysis is not done in an office, but in an entire institution. According to its license, QGIS is not only free in its price, but also to distribute it, check its source code, or even use parts of QGIS in other programs.

QGIS has a large number of add-ons: The add-ons are characteristic of QGIS since its inception, these are small programs that run within QGIS and serve to do specific tasks. For example, under the distribution of QGIS there are no tools to make an object follow the edge of other objects, but if there is an add-on that does it and it is called AutoTrace.

Read Eduardo Guillén's full review
Ember Urbach, LMSW profile photo
June 14, 2018

Review: "QGIS a great solution for nonprofit organizations"

Score 7 out of 10
Vetted Review
Verified User
Review Source
QGIS was used by select researchers who utilized the mapping software for social and economic data visualization in line with our organization's mission and views on children and adolescent health. This is a low cost/free option for us to create reports and tools for grantors and funders, as well as legislators.
  • Demonstrates geographic-centric data for all levels of readers
  • Makes complicated data more easily digestible and reviewable
  • Increases the ability to explain data to funders, grantors, and stakeholders
  • QGIS is hard to use for beginners. A better tutorial and clearer online tutorials could improve this.
  • Labeling interface is overly complicated. Allowing users to manually add labels to relevant items could be helpful.
  • QGIS should have more "wizards" that can easily import common data points (median income, population density, etc) and cross tabulate that with other categories easily from uploaded data.
QGIS is a great alternative to expensive GIS software for non-profits and new users who are looking to enhance their data visualization and reports to stakeholders. Organizations who are afraid to make a jump and invest in comprehensive GIS software should feel safe and comfortable giving QGIS a try and introducing employees to GIS information software to help improve how they use and learn from data.
Read Ember Urbach, LMSW's full review
Cesar A Siso L profile photo
January 19, 2018

QGIS Review: "A Great Option for Users of GIS"

Score 7 out of 10
Vetted Review
Verified User
Review Source
QGIS has helped us to make all the cartography and maps to do the spatial analysis or urban areas, with the tools for edit, create, customize and print, we have build maps of the entire city emphasizing the maintenance of the highways, sidewalks, and recreational spaces. The software is used only in the planning area with some implications in others spaces like administration or any office who needs gathering information some particular place or of a specific category of urban space. Qgis it is a really good tool to makes plans, organizes information, manages spatial data, makes maps, and for explaining the people who work in the company or general public which are the places where we need to act and how these are distributed in the city.
  • QGIS can manage virtually any kind of spatial data that means you can manage shapefiles, tab files, raster files, cad files, and so many other formats that can help you to make the maps and analyze data in the best way.
  • With QGIS you can add or modify the tools, for example, if you know some programming experience you can modify the software and include your own tool or extension, this can be very useful if you are an entrepreneur who it is starting to involve in the GIS world.
  • QGIScome GNU license and that means that anybody can easily download the software on his computer and manage all the information available on the internet of spatial data or share information with other people who manage the software or has some interest of build some applications or extensions to it.
  • Being an GNU software has some limitations and one of them it is the instability of the software, it can be closed randomly or without any warning and this can be so annoying if you are doing a very hard work, this happens because you do not have any professional customer support, you only have it from other users.
  • The continuous actualizations can be very annoying because the series bring to fast and you can manage the version 2.14 a little and quickly you can have available, who has not so many modifications and the most of time if not even necessary.
  • You have to be aware of the data, with GNU license the data that you download can be wrong or cannot have all the information that you need, sometimes you could find errors in "datum" o coordinates you have to be aware because the data that it uses is made all over the world without any supervision, virtually anyone can put wrong data for the users, and you do not know until you work with it.
QGIS can be a tool for beginners or for users who are not familiar with a private software, the interphase it is very easy to manage, and you can have no problems working with a variety of files like cad, shape or tab because the software allows all. For people who it is starting with GIS this the best to get a basic knowledge and start to develop their abilities.

The users, especially the new ones have to be aware of the dysfunction of the free software, some versions can be very unstable and bring some complications in the middle of a job, you have to be aware of the data and where that data comes from, that data can be wrong or have so many mistakes. Another consideration is related to the basic knowledge of programming language if you do not know a little you can have some troubles because to do a modification in the software you have to know a little about programming.
Read Cesar A Siso L's full review
Isabel Huamani profile photo
March 15, 2018

QGIS Review: "Powerful GIS in development"

Score 8 out of 10
Vetted Review
Verified User
Review Source
QGIS is a very complete tool for spatial analysis as well as the elaboration of topographic and thematic cartography. It seems to me an excellent advantage that QGIS allows the connection with R, which is also open source statistical software, allowing to directly relate the data of the various variables with their spatial location.
  • QGIS is an excellent open source GIS tool that has been strengthening over the years.
  • It is not necessary to pay an expensive license to use all the options that it offers us and that is a great benefit, especially to professionals who use the GIS for the development of our work and research
  • It has a friendly interface, it is very easy to use, especially if you have previously handled a GIS tool.
  • I also like the great variety of functions that it offers us and that allows us to solve almost any problem.
  • This software unfortunately tends to be unstable, because sometimes unexpected closures occur.
  • At times I have had problems because I do not execute certain actions and I must restart the program in order to execute the action satisfactorily.
  • On the other hand, the quality of the cartographic output is weak compared to other software.
It's a very good GIS tool. It is a free software that has had a rapid development, it can even be compared with other GIS proprietary software of world reknown.
QGIS allows you to download a large number of add-ons developed by other expert users, which are available to all for free.
In addition QGIS accepts multiple formats such as shapefile, mapinfo layers, binary coverage, raster, among others, which gives the user the facilities and ability to work with the information available.
Read Isabel Huamani's full review
Vladimir Salnikov profile photo
March 03, 2017

User Review: "QGIS for provident startups"

Score 10 out of 10
Vetted Review
Verified User
Review Source
Well, geospatial analytics is a part of my duties. As long as we are developing software, which strongly uses geospatial analytics - we have to prove some kind of research visually, using maps and schemes. QGIS ideally fits us, because it contains all instruments under one suite. Also, it is highly customizable, (using Python scripts and other powerful tools, such as a models designer and the ability to use algorithms from other external GIS software).
  • Processing of multispectral satellite imagery. Using an internal raster calculator you can perform virtually any calculation upon bands. Using Python scripting - you can perform anything.
  • Vector information manipulation and solving some practical tasks as area zoning, weighing factors from the spatial side of view, optimizing grids. A lot of algorithms supported out of the box. And yes, we can always develop our own, using mighty Python scripting.
  • GPS recording and areas digitizing. I've done about 95,000 hectares using a mixed approach - vectorizing upon aerial images and walking around objects with a laptop, connected to a GPS receiver and QGIS, engaged on record.
  • Processing terrain shading, roughness index, and using digital elevation maps. I've used these capabilities for the calculation of erosion danger for agricultural lands.
  • Prepare maps for printing. QGIS allows you to create amazing mockups for maps and export it to PDF up to A0 size. I've used it to print a lot of analytic maps.
  • QGIS lacks predefined support of standard packages for satellite imagery sources. To process metadata from packages (which is used for radiometric correction, atmospheric corrections, DEM corrections, etc) - you need to develop your own scripts or extract metadata manually.
  • QGIS' mobile version for Android does not work so well, because this is a port of the desktop version actually, and a lot of controls are adapted for the use of a mouse, and it's hard to operate with it on touch screens.
  • Caching of tiles when using WMS/WMTS layers. QGIS doesn't manage it, so working with remote layers can be a real pain [during] a slow internet connection.
Imagine a small startup company, which is developing some sophisticated product, but in the situation of financial hunger. In this case, instead of spending a lot of money for buying expensive software, it would be better to use free, open sourced solutions, just like QGIS is. It provides virtually all functionality like commercial software does but with no cost. This will allow you to save money for a company, or use it more effectively.
Read Vladimir Salnikov's full review
No photo available
April 10, 2017

Review: "QGIS. A powerful GIS Suite that doesn't come with a toolset so much as a tool warehouse."

Score 8 out of 10
Vetted Review
Verified User
Review Source
I have been visiting and re-vising QGIS periodically since I began working with GIS softwares in 2005, comparing it always to the commercial products I was learning to use in school (ArcGIS, IDRISI, ENVI, ERDAS). Every software I have listed above has evolved greatly over that period of time, but none quite as much as QGIS.

Part of the continual growth of QGIS is in terms of UI refinement and improvements to ease-of-use and workflow. Steadily, the GUI has improved along with the underlying toolset. I feel that now QGIS is certainly the premiere free GIS software, as well as a strong contender in its own right, with lower barriers to entry than any other GIS software, making it my pick for what GIS students and professionals should be trained on first.

After graduating college, I transitioned all of my previous work to QGIS so that I would still have access to my data, maps, analyses, and work despite no longer having access to the various commercial tools I used while at university. The value of being able to "keep" my work with open formats and free tools cannot be understated.
  • The FOSS nature of the software means any and everyone can have access to it, and that those same people can contribute to its growth and development.
  • The ever-expanding library of analyses and tools are a testament to the power of FOSS model, and the advantage it provides compared to the other commercial suites.
  • Cross-platform (Win, Mac, Linux, Android [Beta]).
  • Low (relatively) system requirements.
  • Wide data format support for import/export, with ability to expand via Plugins.
  • Tight integration into OpenStreetMap and other Web Mapping Services (WMS).
  • Acts as a graphical front-end to the GRASS analysis suite, which has been in development since 1984 and contains over 350 modules.
  • GUI still trails others in terms of ease-of-use and modernness (No Ribbon UI, no command searchbar like IDRISI).
  • No direct/easy migration path from ArcGIS (mxd2qgs is not under development and fails under ArcGIS 10.5).
  • No dedicated support channels like you get with commercial GIS software.
I believe that QGIS should be the tool that students and professionals are introduced to GIS with. Despite the slightly difficult UI, it has an immense library of powerful tools and an incredibly low barrier to entry that ensures that those using it can use it wherever, whenever without fear of licensing costs or other restrictions.

Depending upon your environment, I would likely suggest that QGIS not be put into a "production" role without verifying stability and compatibility with the data, workflows, machine, environment, etc., where it is being deployed, though I personally have not had issues in this regard yet when using the installers provided on the QGIS page.
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QGIS Scorecard Summary

About QGIS

QGIS (formerly Quantum GIS) is a free and open source geographic information system.

QGIS Technical Details

Operating Systems: Unspecified
Mobile Application:No