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ColorSpace vs uiGradients: catalog facts
ColorSpace	uiGradients
Free Free to use in the browser.	Free Free to browse and copy gradients.
Web	Web
Many palettes generated from a single input color Gradient generator with up to three colors	Ready-to-use CSS for every gradient Community-contributed collection to browse
Few controls over how palettes are generated No accessibility or contrast checks mentioned	A gallery of fixed gradients rather than a gradient editor Little information on the site about how often new gradients are added
Web application	Web application
Closed 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	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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