Qiqqa
Mendeley
Zotero
JabRef
Citavi
Docear
Paperpile
Papers
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
Qiqqa
kdiff3Qiqqa is recommended for academic researchers, graduate students, and professionals who deal with large volumes of research papers and need an efficient system for organizing and referencing their materials. It is particularly beneficial for those in fields that require extensive literature reviews and citation management.
Qiqqa is by far the strongest solution for research and managing pdf's. Zotero, named as a comparison is weak as it does not allow pdf;s to be loaded into its interface - you need to use a pdf reader, which defeats its whole purpose. With Qiqqa documents in a library can be searched together. It has excellent maps of your libraries. It is not prefect, having a few glitches, but still is the only one of its kind.
Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
Beyond Compare - Beyond Compare allows you to compare files and folders.
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
JabRef - Graphical Java application for managing bibtex (. bib) databases.โJabRef ยทย โJabRef Help ยทย โJabRef | Blog ยทย โOpenOffice/LibreOffice .
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.