Mendley is a citation management software program: a free, easy-to-use tool to help you collect, organize, cite, and share your research sources. Think of it as a personal research assistant: it helps you manage your information by downloading citations directly from publisher websites or databases (where available) or directly importing full-text PDF articles. It also allows you to enter citations manually.
EndNote is citation management software produced by Clarivate. A free 30-day trial is available through EndNote. The software can be purchased at the Campus Store. Two Cornell colleges offer their communities free access to Endnote via site license: Human Ecology (under Software) and Agriculture & Life Sciences.