While this website is made and maintained by the 3D Geoinformation group at the TU Delft, everyone is welcome to contribute by submitting new content and/or fixing errors.

Help with CityJSON?

CityJSON forum

Errors or improvements in the specifications or schemas?

https://github.com/cityjson/specs

Errors in this website?

Just click on the link (edit this page on GitHub) at the bottom of any page, fix what needs to be fixed, and make a pull request.

The code of this website is open: https://github.com/cityjson/website