ReadCube
Mendeley
Qiqqa
Zotero
JabRef
Papers
Docear
BibDesk
LiquidText Ink
Highly for iOS
LINER
Highlight
Weava
LINER Browser Extension
Markup-Annotation Expert
Diigo
ReadCube LiquidText InkMendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
Highly for iOS - Medium-style highlighting in every app and website. 🖌
Qiqqa - Qiqqa is a free research and reference management software. It can be used in many organizational projects from the academic to the personal to the business endeavor. Read more about Qiqqa.
LINER - LINER AI Copilot is currently powered by ChatGPT/GPT-4, Google Search Engine, and information from high-quality highlights of an enormous number of users from all around the world.
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Highlight - "Highlight" physical books through conductive pages 📖✨