Manage references and files on your own computer using the desktop version, then share between computers using the web interface.
The Mendeley Reference Manager is available for use on desktop computers. Reference Manager is virtually identical to Mendeley on the web.
Install the Mendeley Web Importer -- Install the Web Importer into your favorite web browser to import references and documents from academic databases.
This allows you to save articles to your Mendeley Library as you browse the literature.