Mendeley is a reference/citation manager with web-based, desktop, and mobile versions. You can sync your citation library between these different versions and across different devices.
Mendeley Reference Manager (desktop app) simplifies the process of adding and using your references. The Mendeley Cite tool allows you to easily insert in-text citations and bibliographies / references in documents created with Microsoft Word 2016 and above, Microsoft Office 365 and Online, and the Microsoft Word app for iPad. The Mendeley Web Importer allows you to import papers, web pages and other documents directly into your reference library from search engines and academic databases; it is available for all major web browsers
Get stared with the Mendeley Reference Manager: A Guide for New Users (pdf) or check out the Mendeley Help Guides pages.
Note: The old(er) Desktop app and Citation Plugin are still available for those using pre-2016 versions of Microsoft Word on the desktop.
Platform: Desktop, Web, iOS, Android
Installation of Mendeley Desktop on Windows (7 or later) and Mac (OS X10.10 or later)
Citation Plugin: Used with Mendeley Desktop on Microsoft Word (Windows & Mac) or Libre Office (all platforms)
Citation Guides: APA, MLA, Harvard, citing a website
Videos and Tutorials : Short (most less than five minutes) videos on getting started, importing and organizing documents, generating citations and more.