The EPSRC Physical Sciences Data-science Service
(PSDS) is run by a consortium between the University of
Southampton and the STFC.
For details go to the PSDS portal link at the
top right of this page.
Daresbury runs the CrystalWorks system for the PSDS.
Access CrystalWorks using the link at the top left of this page.
You can get to CrystalWorks via the PSDS portal, but access
here provides more options.
These include standalone access to the Crystallography Open
Database as well as various example structure collections under the
CrystalWorks umbrella.
The additional options do not require any registration and are all open
access.