Hypothesis

San Francisco, California, United States

Hypothesis is an open-source social annotation tool widely used in education that allows users to highlight, comment on, and annotate web pages, PDFs, and other digital content collaboratively.

It supports threaded discussions, public and private groups, tagging and replies, instructor moderation, and deep integration with learning management systems such as Canvas, Blackboard, Moodle, and D2L Brightspace to embed annotation activities into courses and assignments.

🏠 Website
- web.hypothes.is
🔗 Links
- Wikipedia
</> Source code
- GitHub

💸 Pricing

Hypothesis is available in both free and paid versions.

Free version ✔️Individuals

Institutions$6,800+/year

⚡ Sites Using Hypothesis

The list of sites that use Hypothesis is still being compiled.

#	Website	Rank	Country	Language
1	zinmanga.net	#35,688	United States	American English
2	hypothes.is	#82,173	Iceland	American English
3	winbox88my3.com	#93,733	Malaysia	English
4	samiam.org	#212,617	United States	English
5	anagora.org	#464,807	France	English
6	delicate-leather.com	#481,822	United States	English
7	jbsr.be	#665,398	Belgium	English
8	docsify-this.net	#737,985		English
9	mt2.org	#747,619	Turkey	Turkish
10	journal-buildingscities.org	#748,490		English
11	thuhuongcake.vn	#779,098	Vietnam	Vietnamese
12	openpraxis.org	#798,239	United Kingdom	English
13	ijic.org	#801,841	United Kingdom	English
14	rips-irsp.com	#804,784		English
15	globalheartjournal.com	#823,221	United Kingdom	English
16	journalofcognition.org	#825,128		English
17	pmejournal.org	#829,128		English
18	arabuloku.com	#866,425	Turkey	Turkish
19	realokey.com	#867,350	Turkey	Turkish
20	tmgonline.nl	#898,453	Netherlands	English

📈 Usage Statistics

Statistics for Hypothesis are still being collected and will be available later.

🕵️ Similar Technologies

These are some of the best Hypothesis alternatives.

Rank	Name
27	Marker.io Brussels, Belgium A website feedback and annotation tool that lets teams capture visual feedback, screenshots and detailed issue reports directly from web pages. $59+/month
38	Userback Brisbane, Australia A visual feedback and bug reporting tool for websites designed for product, development, UX, and QA teams. Free$9+/month
39	Usersnap Linz, Austria A versatile user feedback platform for product teams to collect feedback and issues with screen capture tools, customer satisfaction micro-surveys, and upvotes on feature requests. Free€49+/month
66	PageProofer Newmarket, Ontario, Canada A visual annotation and website feedback tool that lets users leave notes, drawings, screenshots, and screen recordings pinned to specific web page elements to communicate design issues and bugs. $39+/month
74	Feedbucket Gantofta, Skåne, Sweden A visual website feedback tool that allows users to submit feedback without leaving the website. $39+/month