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Stitch vs OpenUI: catalog facts
Stitch	OpenUI
Free No paid plan is mentioned in the available information.	Free Free and open source to run yourself.
Web	Self-hosted
Generates app interface designs from a description Covers both mobile and web layouts	Generates UI components from plain-language descriptions Renders the result live as you iterate
Closed-source Google service Suited to ideation more than finished design work	You run the backend and frontend yourself Built partly as an internal prototyping tool, with a smaller commit history than similar projects
Web application	Self-hosted
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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