Hypothes.is Alternatives

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

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

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...

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)

Instapaper is a simple tool to save web pages for reading later.

Put simply, Liner is a virtual highlighter. It works on PDFs and webpages in the same way a regular highlighter works on books and magazine clippings. Read more about Liner.

Biblioscape is a bibliography software to generate citations and a bibliography in APA, MLA, etc.

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

Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.

Guitar lessons that listen as you play along

Marker.to is a simple annotation tool.