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OmniGraffle vs yEd Graph Editor: catalog facts
OmniGraffle	yEd Graph Editor
Paid Paid app with a free 14-day trial.	Free Free to download and use; yWorks sells its other diagramming products separately.
macOS, iOS	Windows, macOS, Linux
Covers diagramming, rapid prototyping and vector design in one app Precise snapping, grouping and alignment tools	Automatic layout arranges large diagrams in one step Imports data from Excel spreadsheets and XML
Apple platforms only Paid after the 14-day trial	Closed source Desktop only; online editing requires other yWorks products
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: Proprietary freeware
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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