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Paper vs OpenPencil: catalog facts
Paper	OpenPencil
Freemium Pricing is not shown on the homepage; check the site for current plans.	Free Free and open source under the MIT licence.
macOS, Web	macOS, Web, Command line
Canvas built on web standards, close to real code Desktop app plus a browser version	Opens and round-trips Figma .fig files Headless CLI for exporting and analysing designs
Pricing details are not stated on the homepage A young product next to established design tools	Young project compared with established design tools Figma compatibility relies on a reverse-engineered file codec
Downloadable app, Web application	Downloadable app, Web application
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account 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.