Benubird PDF is a document organizer with support for tags and collections.

BibSonomy is a social bookmarking and publication-sharing system.

Docear is an academic literature suite. Docear bundles several applications for academics. As of now, these applications are BibTeX based reference management…

Mendeley is a free reference manager and an academic social network.

Papers helps you collect and curate the research material that you're passionate about.

ReadCube is a desktop and browser-based program for managing, annotating, and accessing academic research articles.

BibDesk is an open-source reference management software package for macOS, used to manage bibliographies and references when writing essays and articles.

Citavi is a reference management program.

EndNote is a commercial reference management software package, used to manage bibliographies and references when writing essays and articles.

Paperpile is a web-based reference management software, with special emphasis on integration with Google Docs and Google Scholar.

Qiqqa is award-winning research management software, designed for commercial and academic researchers.

SCIENTILLA is a free scientific register for organizations and researchers.