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WebScrapBook vs Hypothesis: catalog facts
WebScrapBook	Hypothesis
Free Free and open source under the MIT licence.	Free Free for individuals. Institutional and LMS integrations are paid.
Browser extension	Web, Browser extension
Builds an organised, searchable archive rather than loose files Annotations and highlights are stored with the capture	Annotations anchor to the text and survive page reflow Private, group and public annotation layers on the same document
Full features need the companion backend server running Setup is more involved than a one-click page saver	Requires an account and stores annotations on their service Anchoring can fail if a page changes substantially
Browser extension	Browser extension
Open source	Open source
License: MIT	License: BSD-2-Clause
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.