Hypothes.is Alternatives

Diigo is a powerful research tool and a knowledge-sharing community

Workspace to highlight, organize & collaborate on your research articles.

The complete stand-up and follow-up bot

Try for free freemium $29.0 / Monthly (Flat price)

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 is a free, easy-to-use tool to help you collect, organize, cite, and share research.

Open Source

When you find something you want to view later, put it in Pocket.

scrible lets you highlight and annotate web pages and easily save, share and collaborate on your...

All your articles, photos, video & content from web & apps in one place.

Open Source freemium

Social web highlighter

free

Bookmarking for the power users of the web. A privacy focused extension to annotate, search and organize what you've seen online.

The simple way to save & annotate web pages and PDFs, compare different concepts across the literature, organize your bibliography and generate citations.

freemium $1.25 / Monthly (2GB Storage, 10 Projects)

Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.

Annotate the Internet

A powerful document manager for Mac, Windows, and Linux for managing web content, books, and notes and supports tagging, annotation, highlighting and keeps track of your reading progress.