Zenreader has been discontinued. Similar apps include Zotero, which is open source with a free version. Other options are Mendeley, Qiqqa, DEVONthink and JabRef. You can choose from more than 10 Research Managers like Zenreader for Mac, the web, Windows, iPhone and iPad.
Zotero is a free, easy-to-use tool to help you collect, organize, share research and cite your research sources directly in your favourite word processor, with 300 MB free online storage.
United States
Mendeley helps manage and share academic knowledge: Mendeley Desktop is free academic software (Windows, Mac, Linux) for organizing and sharing research papers and generating bibliographies with 1GB of free online storage to automatically back up and synchronize your library...
Netherlands
EU
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.
United Kingdom
Organizes documents, notes, emails, PDFs, and media using AI-powered search, tagging, and OCR. Supports offline use, syncing across macOS and iOS, encryption, web clipping, automation, and customizable grouping for efficient information management.
GermanyEU
Bibliography reference manager. The native file format used by JabRef is BibTeX, the standard LaTeX bibliography format.
Read, annotate, and highlight PDFs, fill interactive forms with saved input, underline or strike through text, manage bookmarks, sync files from cloud services, and share documents. Compatible with Preview and Adobe Acrobat annotations, supporting extensive iOS features.
Ukraine
BibSonomy is a system for sharing bookmarks and lists of literature (BibTex format).
GermanyEU
Reference management tool supporting searching and importing from databases, auto-formatting citations, creating bibliographies, syncing libraries via the cloud, annotating PDFs, collaboration, deduplication of references, web-based access, and AI-powered assistance.
United Kingdom
Organize your research papers in a Gmail-like web app, sync your PDFs to Google Drive and cite your references in Google Docs.
ZoteroBib is a free service to help people quickly create bibliographies without installing any software or creating an account.
United States
Papers helps you collect and curate the research material that you're passionate about. This award-winning reference manager will improve the way you find, organize, read, cite, and share.
United States
LiquidText offers a fast, natural way to review, gather, and organize information across all your docs: then apply the results to writing reports or simply studying. Pull out key facts and connect them together
United States
