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Flowchart Fun vs Zen Flowchart: catalog facts
Flowchart Fun	Zen Flowchart
Free Described on its website as a free online flowchart maker.	Freemium Free to start, with an optional paid upgrade.
Web	Web
Diagrams are written as plain text, so edits are fast Runs in the browser with nothing to install	Very simple interface with one-click node creation Real-time collaboration with view, comment and edit roles
Less control over exact layout than a freehand drawing tool License and source details are not stated on the homepage	Deliberately limited feature set compared with full diagram suites Works online only
Web application	Web application
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 October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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