Hypothesis

Reading and annotating PDFs

About Hypothesis

Open source tool for annotating web pages and PDFs, privately or in shared groups, often used in reading seminars.

Details

  • Free plan or free tier

    Yes

  • Open source

    Yes

Not enough info yet on works in Word or Google Docs, developer API, shows sources for its answers, mobile app. Check the tool's own site.

Listing written by ResearchBest, checked 2026-11-03. Report a correction or request removal. Back to reading and annotating pdfs.

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