Reason CMS is Carleton’s website builder. It offers offices, departments, and student organizations an easy and powerful way to create and manage website content.

Reason was originally developed by Carleton’s Web Services Group. It began powering Carleton’s website in 2002, and has been an open source project since 2006. A variety of schools have used and contributed to Reason, but the software is no longer being actively developed.

To log in to the administrative interface of Reason at Carleton, visit

To see a few interesting and innovative examples of Reason-powered websites at Carleton, visit the Reason Showcase.

There are 487 live sites currently using Reason: