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Penpot vs Frame0: catalog facts
Penpot	Frame0
Free Free and open source; a hosted cloud version is also offered.	Freemium Free to download; check the site for any paid licence terms.
Windows, macOS, Linux, Web, Self-hosted	macOS
Self-hostable, so design files can stay on your own infrastructure Open source with no per-seat licensing required	Hand-drawn style wireframes in the Balsamiq tradition Works offline
Smaller plugin and template ecosystem than closed-source competitors Self-hosting requires running and maintaining your own server	Focused on low-fidelity wireframes rather than full UI design Pricing details are not stated on the homepage
Downloadable app, Self-hosted, Web application	Downloadable app
Open 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	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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