Full integration of GDAL, a library that offers access to many raster formats;


Access to Postgres/gis databases for data and maps;


Extension and improvements of the SEBS functionality.

If you already downloaded ILWIS 3.7, you need to download it again. There were a number of bugs that needed fixing. So please download ILIWIS 3.7

We particularly like to thank Martin Schouwenburg and everybody else that have tirelessly worked at making these very important improvements on ILWIS. Check what's new for ILWIS 3.7

This website promotes the use of the free open source GIS software "Integrated Land and Water Information System, ILWIS, the world's most user-friendly integrated software with raster processing capabilities to work on remotely sensed satellite images and vector processing capabilities for making vector maps and countless spacial modeling abilities. Its fully integrated raster and vector approach and user-friendlyness make it particularly suitable for natural resources managers, field scientists, biologists, ecologists, etc., as well as for educators. But don't be mistaken, ILWIS is incredibly versatile and powerful. Some of the key futures of ILWIS are: 

Key features

  1. Vector and Raster capacity integrated into 1 software package

  2. Developed by an autonomous higher education institution under the Dutch government

  3. Initiated in 1984 with a subsidy from the Ministry of Development cooperation, ILWIS is one of the oldest GIS programmes around

  4. With both vector and raster integrated into one package, it takes less time to learn to use the programme

  5. Being developed by a training institute, ILWIS has always been tested for its user-friendliness for more than 2 decades on thousands of students 

  6. The biggest savings in using ILWIS is in its greater use efficiency, thus saving costly production time

  7. Free open source software available for downloading by anyone

  8. More than 2 decades of development now continued by 52North, a consortium of open source developers

  9. No costly periodic updates required like for the commercial packages;

  10. Some of the greatest selections of  import  and export modules of widely used data formats

  11. On-screen and tablet digitizing

  12. Comprehensive set of image processing tools

  13. Orthophoto, image georeferencing, transformation and mosaicing

  14. Advanced modeling and spatial data analysis

  15. 3D visualization with interactive editing for optimal view findings

  16. Rich projection and coordinate system library

  17. Geo-statistical analyses, with Kriging for improved interpolation

  18. Production and visualization of stereo image pairs

  19. Spatial Multiple Criteria Evaluation

  20. More than 2,000 pages in the help

  21. Very extensive training documents with training files

  22. WMS

  23. Surface energy balances


Major updates become available about every half year or so. But minor updates with bug fixes appear more frequently. We suggest you get the latest version on line every 3 months or so, to make sure that you have the latest version available.


Thanks to Martin Schouwenburg at the ITC for yet another great contribution to furthering the most userfriendly open source GIS in the world!


Click here to find out what is new on ILWIS 3.7



Number of ILWIS Users

The use of ILWIS is growing rapidly, as can be seen from our download statistics since we launched facilitated the possibility to download ILWIS in July 2007:

Month 3.3 3.4 3.5 3.6 Monthly Totals Yearly Totals







Grand Total




Purchase value at $12,000/lisence for commercial software: $321,720,000
Total 2009




January 173 14
776 963
February 111 14
729 854
March 243 21
1150 1414
April 148 14 15 1050 1227


Total 2009           11266
Total 2008   9570
Total 2007   1516


Some 27 000 copies of ILWIS have been downloaded from this site and now a similar number of people have the opportunity to develop of further their GIS skills. If these people would have had to purchase packages with similar abilities to handle both raster and vector from the market leaders, they would have had to spend an estimated $320,000,000, assuming the costs of 1 vector + 1 mid-range raster license at = $12,000. All these people now have vector and raster software for free! And that is just from this site. About double that number of programmes are downloaded monthly from So we are probably looking at 30 000 to 40 000 ILWIS users worldwide. We like to thank the dedicated workers at the ITC, and particularly Martin Schouwenburg to tirelessly working at continuously improving ILWIS.   


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NATURE WORLDWIDE is the official website of the World Institute for Conservation and Environment, WICE. It is an integrated network of web sites dealing with different topics on nature, nature conservation and natural resources management. Read here why we created Nature Worldwide. Our Methodology explains how we produced our information. Our Site Map helps you find your way in the website. We made this website out of passion for conservation. We spent our own salaries and free time to gather the information and publish it on these websites, in total valuing hundreds of thousands of dollars of professional time. Nobody pays us to do this. We simply want to contribute to conservation. If you appreciate our work, PLEASE visit our site Adopt A Ranger and see how you can make a difference for conservation most effectively: By paying one day of the salary of a ranger, you will make a difference in conserving the lives of thousands of birds, other critters and entire forests. Check our sitemap. Enjoy!

NATURE DU MONDE est le site Web officiel du World Institute for Conservation and Environment, WICE, C'est une collection intégrée de sites web qui traitent avec des sujets différents sur nature, conservation de la nature et gestion des ressources naturelles. Lisez ici pourquoi nous avons créé Nature de Monde. Notre Methodologie explique comme nous avons produit nos renseignements. Notre Site Map vous aide trouver votre entrée dans le site web. Beaucoup de plaisir!

NATURALEZA DEL MUNDO es la página Web oficial del World Institute for Conservation and Environment, WICE, Es una red de páginas Web tratando de temas diferentes relacionados a la naturaleza, la conservación el manejo de recursos naturales, parques nacionales y áreas protegidas. Lea aqui porqué hicimos Naturaleza del Mundo. Nuestra Methodología explica como produjimos la información. Nuestro Mapa del sitio le ayuda encontrar su información en nuestra página web. Disfrute! 

NATUREZA DO MUNDO é o Web site oficial do World Institute for Conservation and Environment, WICE, Es uma red de páginas Web tratando de temas diferentes relacionados à natureza, la conservação el manejo de recursos naturaleiss, parques nacionais y áreas protegidas. Lea aqui porqué creamos Natureza do Mundo. Nossa Methodología explica como produjimos a informação. Nosso Mapa do sitio le ayuda encontrar sua informação no web site. Desfrute!

NATUR DER GANZEN WELT ist, die offiziellen Website der World Institute for Conservation and Environment, WICE. Es ist ein einheitliches Netzwerk von Web Sites, über Themen wie Natur, Natur-Schutz und natürlichem Ressourcen Quellen Hege. Lesen Sie hier warum wir Natur der ganzen Welt gemacht haben. Un

sere Verfahrensweise erklärt, wie wir unsere Informationen produziert würde. Unsere Site Map  hilft Ihnen Ihren Weg im Website zu finden. Viel Spaß!

NATUUR UIT ALLE STREKEN is, de officiële Website van het World Institute for Conservation and Environment, WICE. Het is een geïntegreerd Netwerk van websites, over Natuur, Natuurbescherming en het beheer van natuurlijke hulpbronnen. Lesen Sie hier warum wir Natuur uit alle Streken gemacht haben. Onze pagina Methode legt uit, hoe we onze informatie vergaarden. Onze Site Map helpt u op weg door onze website. 

WICE is a worldwide non-government non-profit organization that contributes to the conservation of nature. While it works on a many issues related to the conservation of nature and the protection of the environment, it is particularly committed to the conservation of national parks and other protected areas.

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