Qiqqa
Qiqqa is free award-winning knowledge-, research- and reference management software. If you're serious about getting the most from managing your publications, PDFs and bibliographies, Qiqqa is for you. Superb reference and document management. Import PDFs into separate libraries. Automatic OCR and tag extraction. Qiqqa helps you populate missing metadata for millions of research papers. Full-text search, duplicate paper detection, inbound and outbound links, and much more. Top-notch built-in PDF reader with annotating, highlighting, automated jump links, and so much more. Create printable summaries of notes, mindmaps of your thoughts, and directly cite your references and automatically create bibliographies within the Microsoft Word™ word processor. See information about papers, and connections between concepts, in a totally new way. Explore an entire library of papers via authors, papers, tags, and themes. Know exactly what paper to focus on next. Back up and synchronize your library to a free 2Gb cloud storage across desktop, tablet, web and mobile. Optionally sync inside your private intranet with unlimited storage. Share library documents, metadata, and notes in private with selected friends or colleagues. Qiqqa enables 21st century research, trusted by academics and researchers around the world.
