Mendeley is both a desktop and a web-based citation management program that does many of the things that other programs do including:
Although Mendeley Desktop and Mendeley Web look similar, there are some feature differences that dictate how you will use each one.
Mendeley Desktop is best for storing, editing, and viewing PDFs on your computer and automatically creating citation data from the PDFs.
Mendeley Web gives you access to your saved research on the go and collect citations while browsing online databases. Mendeley Web also lets you access its crowd-source research catalog, the Papers collection.