The best alternative to Mendeley is Qiqqa, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Mendeley and four of them are so hopefully you can find a suitable replacement. Other interesting alternatives to Mendeley are JabRef, Elumity and Afforai.
Qiqqa is a free research and reference manager. Search for, read and annotate your PDFs. Then review your work, write up and create bibliographies instantly.
Differently from Qiqqa, Mendeley has no annotation report feature, meaning that it is not possible to gather all highlights/annotations on a paper into a single file. This is very useful for large pdf.
Bibliography reference manager. The native file format used by JabRef is BibTeX, the standard LaTeX bibliography format.
JabRef only handles bibtex files.
Elumity is a powerful academic tool for managing and sharing knowledge, combining research, reference management, and collaboration in one platform.
Afforai is the AI-powered reference manager for modern researchers, helping researchers manage, annotate, cite papers and conduct literature reviews with AI reliably. Afforai was built to assist every kind of researcher, whether you are a student, professor, or researcher of 50-years.
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Has the feature to tag regions of a pdf with a keyword or add a note with a tag and later compile all occurrences of the tagged regions with a particular keyword across the whole library..