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Sketch vs Penpot Desktop: catalog facts
Sketch	Penpot Desktop
Paid Paid subscription software.	Free Free and open source under the AGPL-3.0 licence.
macOS	Linux
Long track record as a dedicated UI design tool Established plugin ecosystem	Runs Penpot in its own desktop window Open source with an active repository
Mac only, no Windows or Linux version Paid subscription required	Unofficial; not made by the Penpot team Depends on Penpot itself for all design features
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0-or-later
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 22, 2026	Official website Full listing and sources Checked October 1, 2026

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