Eclat provides Frequent Item Set Mining. Find frequent item sets using the eclat algorithm. Eclat help you find frequent item sets (also closed and maximal) with the eclat algorithm, which carries out a depth first search on the subset lattice and determines the support of item sets by intersecting transaction lists.
The current version of this program can only find frequent item sets, not association rules. It does not support the item clustering described by (Zaki et al. 1997), but it does support diffsets (Zaki and Gouda 2003).

usage: eclat.exe [options] infile [outfile [selfile]]
find frequent item sets with the eclat algorithm

The license of this software is Freeware, you can free download and free use this calculator software.