Open UI

Open UI is a W3C Community Group that aims to let web developers style and extend built-in web UI components and controls such as dropdowns, checkboxes, radio buttons, and date or color pickers. The group plans to specify component parts, states, behaviors, accessibility requirements and test suites, and to implement polyfills for extensible controls.

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0 shouts Added Sep 23, 2026 open-ui.org
open-ui.org/
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