nuclearmasses.org was founded to improve the dissemination of nuclear mass information to the nuclear science community.

We have written a suite of easy-to-use client-server applications that enable you to visualize and analyze models of nuclear masses, upload your own mass values, and store and share your results with colleagues.

This site can be an excellent way to inform the community of your latest mass models, measurements, and software tools. Contact us if you would like to contribute your work, and see our contributions page for some examples.

Click on masses to begin.

Click on gallery to see what is possible.

NEW: see the compilation of mass measurements from November 2020 - November 2022 from McMaster Univ. in our contributions page.