Compare software

Kami vs Diigo: catalog facts
Kami	Diigo
Freemium Free trial available; school and district plans are sold through sales.	Freemium Free to use, with premium features such as archived web pages.
Web	Web, Browser extension
Annotation tools built for classroom use Accessibility and translation features for diverse learners	Highlights and sticky notes on web pages and PDFs Tags and a personal library for saved pages
Aimed at schools rather than general PDF users Full plans require contacting sales	Page archiving requires a premium plan Closed source hosted service
Web application	Web application, Browser extension
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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