Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share your research sources.
For an overview of Zotero's features and capabilities, see the Quick Start Guide.
Zotero is primarily a program that runs on your own computer. You can also access your web library on zotero.org. However, while the web library allows you to view and edit your data and access synced files, for full functionality you’ll want to install Zotero on each synced computer.
Download Zotero for Mac, Windows, or Linux at zotero.org/download.