POLAR Alternatives

Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.

Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.

Qiqqa is a free research and reference management software. It can be used in many organizational projects from the academic to the personal to the business endeavor. Read more about Qiqqa.

EndNote is the industry standard when it comes to reference management in a comprehensive format.

BibDesk is an organizational software created to help you edit and manage your bibliography. It keeps track of your bibliographic information as well as said information's associated web links and files. Read more about BibDesk.

The simple way to save & annotate web pages and PDFs, compare different concepts across the literature, organize your bibliography and generate citations.

freemium $1.25 / Monthly (2GB Storage, 10 Projects)

Academia is a website where you can share papers that are written with other users. You can use a Google or Facebook account to sign in to the website.

Papers is a research management software designed to streamline searching, aggregating and citing digital reference materials.

When you find something you want to view later, put it in Pocket.

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Diigo is a powerful research tool and a knowledge-sharing community

ZoteroBib is a free service to help people quickly create bibliographies without installing any...