EndNote is described as 'A reference management software, used for searching online publication databases, & managing publications / bibliographies, with the ability to insert the references into a word processor' and is a research manager in the office & productivity category. There are more than 25 alternatives to EndNote for a variety of platforms, including Web-based, Mac, Windows, iPhone and iPad apps. The best EndNote alternative is Zotero, which is both free and Open Source. Other great apps like EndNote are Mendeley, Qiqqa, JabRef and Paperpile.