Zotero

Zotero (zoh-tair-oh) is a free, easy-to-use reference management (sometimes called citation management) tool for collecting, organizing, annotating, citing, and sharing research. Install the desktop app and access from the web. The Browser Connector senses research online in real-time, identifying citations from journal articles in databases, news articles from the web, and books from the library catalog. Attach PDFs and images to citations. Add folders and subfolders to organize content. Create bibliographies with just a few clicks, and add in-text citations to word documents. 

          By Corporation for Digital Scholarship (Zotero) CC BY-SA 4.0