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HackMD vs Notion: catalog facts
HackMD	Notion
Freemium Free to start, with paid plans for teams.	Freemium Free tier for individuals; paid plans add team features and higher limits.
Web	Windows, macOS, Android, iOS, Web
Real-time collaborative Markdown editing Works in any browser with no install	Highly flexible structure covers notes, databases, and project boards in one app Real-time collaboration for team use
Notes live on a hosted service rather than local files Increasing focus on AI agent features may not suit everyone	Flexibility comes with a learning curve to set up well Can feel heavier and slower than single-purpose notes apps
Web application	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Account 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 24, 2026	Official website Full listing and sources Checked September 22, 2026

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