Citation managers are great tools for keeping your research organized. You can use them to keep track of references you want to cite in your paper, share resources with your peers, and automatically generate citations for you. These tools can streamline your research process and save you a lot of time. However, make sure you double check any automatically generated citations for accuracy -- they can sometimes have minor errors.
Mendeley is a free reference management tool. It allows users to store and organize citations and PDF files, highlight and annotate articles, share notes with other researchers, create in-text citations and bibliographies, and more.