Docear is an education and reference application developed by the German Research Network that helps users organize, manage, and search their academic literature. It allows users to create a personal library of PDFs, organize and tag them, search for relevant material, and collaborate with colleagues. It also provides tools for creating and managing academic projects, such as writing a paper or thesis. Docear offers a range of features to help users make the most of their academic work, such as a literature recommendation engine, automated PDF file renaming and moving, and literature search tools. It is designed to be a comprehensive and user-friendly solution for researchers and students, offering users an integrated workspace to help them stay organized and productive.
Zotero is a partial alternative to Docear. Docear is an open source combination of mind mapping and reference management for academic writing. Zotero manages references, as Docear is integrated with word processing software and has an excellent browser plug-in for extracting metadata from articles. But it lacks the mind mapping component. Docear can also be integrated with Zotero, so you can benefit from the power of both.