Solutions for everyone

Engage in better conversations with social annotation.

Hypothesis allows you to discuss anything, wherever you find it online.

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Turn anything online into a conversation.

Social annotation is the best way to have meaningful discussions, without the disorganization of social media, message boards, and comment sections.

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Hypothesis makes it easy

to annotate pages, videos, blogs, books, documents, and anything else online. Make notes for yourself or directly engage with communities that share your interests. Best of all, it’s free.

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Discuss with everyone or a select few.

Find online interest groups and join public conversations. Or, create a private group so only approved members can view annotations with each other.

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Share your thoughts, your way.

Want to get creative in making your point? Annotate with formatted text, emojis, images, links, hashtags, and more.

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Find all your interactions in one place.

View and filter your annotations so you never lose the information or conversation.

Start the conversation.

Create a free account and install the Hypothesis browser
extension to start annotating.

Create a Free Account