This page lists a number of externally provided tools that either make use of the HELCATS catalogues or are useful to users of HELCATS.

NASA Where is STEREO? tool for finding the location of the STEREO spacecraft
IRAP Propagation Tool tool for tracking CMEs, CIRs and SEP events
TOPCAT tool for viewing and combining VOTable version of the catalogues. LAUNCH WEBSTART VERSION OF TOPCAT
Helioviewer tool for viewing solar disk and coronograph images