There are four options.
The University of Kansas has a campus-wide license for MestreNova software. Download the latest version from the MestreLabs website. Install the software and contact Justin or Sarah via email for the license file. Follow the onscreen instructions for activating the license file. The license file can also be activated using the "help" menu.
MestreNova is powerful software. For help getting started see MestreLabs resources and/or our guide to NMR data processing using MestreNova (PDF).
#2) Bruker Topspin
Bruker offers its software free to academia. Register for an account and download the software from the Bruker website.
#3) ACD NMR
ACD only runs natively on Windows. The NMR data processor is now freeware (for academic users) and can be downloaded directly from ACD labs.
SpinWorks is freeware developed by Kirt Marat at the University of Manitoba. It is free ("as in beer"), but only runs natively on Windows. Executables can be download from U of M NMR lab website.