What is it?

iTowns is a web framework written in Javascript/WebGL for the visualisation of 3D geographic data and precise 3D measurements.

iTowns is highly extensible and based on three.js and thus support all three.js features (post-processing, controls, 3D models and more).

Itowns handles a variety of data types, including:

  • 3D tiles
  • DEM
  • OGC standards (WMTS, WMS, TMS, WFS)
  • Point Clouds
  • GeoJSON, Gpx, KML
  • 3D formats (Collada, GLTF, OBJ, ...)



iTowns is currently maintained by IGN and Oslandia

logo IGN logo Oslandia

You may consult the user and developper mailing lists.


iTowns is an original work of the IGN, LaSTIG research laboratory (formerly named MATIS and COGIT laboratories). It has been funded through various research programs involving the French National Research Agency, Cap Digital, UPMC, Mines ParisTech, CNRS, LCPC.

Thanks for your interest in the iTowns project.

Please get in touch if you want additionnal information.