Annotate the web, with anyone, anywhere.
We’re a nonprofit on a mission to bring an open conversation over the whole web. Use Hypothesis right now to hold discussions, read socially, organize your research, and take personal notes.
or see how it works.
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Hypothesis for Education
Install the Hypothesis LMS App in your LMS and learn more about our pilot program for educational institutions.
GOSee how it works.
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Add tags and post publicly or save privately.
Reply to or share any annotation.
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Annotate together in groups.
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An open community project.
We're a mission-driven nonprofit.
Dedicated to enabling layers of conversation over the world's knowledge.
Building an open platform
That works everywhere, based on open-source technology and interoperable standards.
As a part of a global community.
Working with others across the world to advance human understanding for the public good.
about Hypothesis.