Sassly UI
The same library, in two versions.
Both versions use the same stylesheet, so every component looks and moves the same. Pick the one that matches the project you are building.
HTML and CSS
No build step. Each component has its own page with markup to copy, plus a small vanilla script.
Two tags load everything: cdn/latest/sassly-ui.css and .js
React
Vite and React 19. Components live in react/src/ui, one file each, no dependencies.
Install it as a package: npm i https://uiux.sassly.ai/pkg/…
Docs
Build with AI
llms.txt
AGENTS.md
Add a component: CONTRIBUTING.md