The Observatory does not provide or maintain data reduction software for most of its instruments. For echelle format data which is nontrivial to reduce, however, we try to maintain some type of facility for at the least quick look reductions.

ESIRedux
Jason X. Prochaska's IDL-based reduction package.

MAKEE
Tom Barlow's highly automated reduction program, originally used for HIRES data at Keck. It is now available for ESI as well.