I have an existing reference library
You can transfer your library from other reference managers into Mendeley Reference Manager.
Use the Export option within the other software to extract your references in BibTeX, EndNote XML or RIS file format.
In Mendeley Reference Manager use the 'Import library >' option in the '+ Add new' menu and select the exported file to add its contents to your Mendeley library.
I have PDFs that I want to import
Drag and drop PDFs
Add references to your Mendeley library by dragging and dropping a PDF into the Mendeley Reference Manager window. You can also drag multiple PDFs into your library at the same time. Mendeley will automatically extract the metadata from the PDF(s) and create a library entry.
Browse for files
Use the 'File(s) from computer’ option in the '+ Add new' menu to select a reference from your computer and add it to your Mendeley library.
I don't have PDFs but I want to create references
Manually create an entry
Use the manual entry option to create library entries when you don't have the PDF.
Select the 'Add entry manually’ option in the '+ Add new' menu to manually input the details of a reference. Select the appropriate document type and complete the fields to create a library entry.
Tip: You can use a DOI to look up the details of a reference.