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The Carleton College Web Services Group is pleased to offer Reason for download.

To receive notice of subsequent releases, please join the Reason Announcement list.


The Reason source is available on github.

The master branch is the latest development version:

The latest stable branch is Reason 4.5:

Questions? Contact Matt Ryan.

Reason Virtual Machine

If you are interested in evaluating Reason, you can download a virtual machine. The fully configured virtual machine can be run using VirtualBox or other software that supports Open Virtualization Format.

Download Reason

Reason 4.5 (.zip via github 4.5 branch)

If you have trouble installing / using Reason, please join the Reason discussion google group, or just e-mail