OpenVnmrJ is the open-sourced parts of Varian and Agilent's VnmrJ 4.2, now owned by the University of Oregon and is free and open-source software. Read more about OpenVnmrJ and the history of VnmrJ at Background.

OpenVnmrJ does not contain console software, example FIDs, NMRPipe or ChemPack, however during installation, these will be copied from your existing VnmrJ 4.2 into the OpenVnmrJ directory. The /vnmr symlink will be changed to point to OpenVnmrJ and your existing VnmrJ 4.2 installation will be untouched.

Never delete the Agilent supplied VnmrJ 4.2 on a spectrometer computer because Agilent service will require the original VnmrJ 4.2.

If you want to use or test OpenVnmrJ, download the release appropriate for your OS, see below.

The latest binary releases for OpenVnmrJ are available from Releases.
There are releases for:

• RHEL/CentOS: Built on CentOS 6.3, tested on 6.3 and 6.7
• Ubuntu: Built and tested on Trusty Tahr (14.04)
• OS X: Built on 10.11 (El Capitan) and tested on 10.11 and 10.10 (Yosemite)

For more information on the OpenVnmrJ project, visit openvnmrj.org.

We are looking for anyone to help with this projects. Coding is not necessary! Translations, pulse sequences, macros, beta testing and bug reporting are very helpful. See Contributing for more information.

• Timothy Burrow
• Dan Iverson
• Gareth Morris
• Michael Tesch

We welcome pulse sequences, libraries of macros, UX improvments contributed as an Appdir. Check out the OpenVnmrJ Appdirs repository on how to download and install user contributed appdirs and how to contribute your appdir.

In OpenVnmrJ, type ovjapps to list user contributed application directories.

Feel free to use Slack if you need some help.

If you are interested in building OpenVnmrJ from source, refer to the ovjTools repository, which contains instructions and all the tools and libraries necessary for building OpenVnmrJ.

This work is licensed under the Apachev2 license.

However, optionally linking to the Gnu Scientific Library (GSL) or to other GPLv3 components, will cause the deriviative work to be licensed under the GPLv3.