Hypothesis

What is Hypothesis?

Hypothesis is a collaborative annotation tool, which is free and open to use for everyone. It allows you to annotate anywhere on the web by selecting text via a publicly viewable URL, selecting a file from your Canvas file repository, selecting a PDF from Google Drive, or selecting a PDF from OneDrive. Annotations can be created together in groups or individually, and one can reply to or share publicly or privately.

Hypothesis facilitates active reading while nurturing students to engage socially with contextual ideas and achieve a deeper understanding of readings.

August Starter Series 2025 Starting August 12

Interested in learning more about how Hypothesis social annotation can boost student engagement in your courses?

Get classroom-ready with confidence through expert-led online workshops and training by the Hypothesis staff.

Register for August Series workshops ยป

Pedagogical Support

Other Resources

Help and Support

For help with Hypothesis in Canvas, please contact the Support team, or email support@hypothes.is.

Accessibility Statement

Learn about Hypothesis accessibility statement.