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Onlook vs Builder.io: catalog facts
Onlook	Builder.io
Free The source code is free to use and run yourself.	Freemium Can be tried for free, with sales contact for larger teams.
Web, Self-hosted	Web
Visual edits produce real code AI-assisted building and styling	Works with an existing codebase and design system Lets designers, PMs and marketers make changes as code
Focused on React web apps Self-hosting requires some setup	Aimed at teams rather than individual developers Larger plans go through sales
Web application, Self-hosted	Web application, Hosted service
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
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.