Hypothesis
FREE
Annotate the web, with anyone, anywhere.
About
Hypothesis is a tool for annotating and discussing web content, allowing users to add notes, highlights, and comments to any webpage and share them with others.
Pricing
Pricing Type
Free
Free tier available
Last checked: February 19, 2026
Related Apps
Key Facts
Categories
Platforms
Web
Browser Extension
Company
Hypothesis
Founded
Founded in 2011
Country
Global
Language
English