WinduumSmall and modest CSS component library

Components in plain CSS built on the newest web standards - with as little JavaScript as possible. TailwindCSS for utility classes.

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About Winduum

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💡️

Built on the newest standards

Popover API, Invoker Commands, CSS Anchor Positioning, scroll-driven animations, scroll-state queries, @starting-style, interest invokers and more — used today, with graceful fallbacks.

🚀

CSS-first, minimal JavaScript

Dialogs, popovers, tooltips or accordions work without a single line of JavaScript. Carousel and drawer are driven by native scroll-snap with just a tiny JS layer on top.

📦️

Modular and customizable

Each component is written in plain CSS, so you can copy and paste it, or import it from npm and customize it with CSS properties.

✨️

Accessible web standards

Components build on native elements — <dialog>, [popover], <details>, radio and checkbox inputs — so focus management, keyboard support and semantics come from the platform.

🧩

Framework agnostic

Everything is written in plain CSS and JS, so you can use it with any framework you want. Pre-built components are available for Web Components, Stimulus, Vue and React.

🎨

Extends TailwindCSS

Adds new handy utilities, variants and CSS properties on top of TailwindCSS v4. You don't even need to use TailwindCSS, but it's recommended for the full experience.

Winduum ❤️ CSS