CREST (abbr. Conformer-Rotamer Ensemble Sampling Tool) is an extension to the xtb program. It is intended as a parallel xtb calculation scheduler and tool for analyzing structure ensembles. 

• A GitHub repository is available here.
• A binary of the most recent program version can be downloaded here.
• The online manual is available at https://crest-lab.github.io/crest-docs.
• Further contact information is found here.