⚡
Zero Runtime
All CSS is generated at build time. No runtime overhead in production.
PikaCSSAtomic CSS-in-JS Engine
Write styles in JS objects. Ship zero-runtime atomic CSS.
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✍️
CSS-in-JS Syntax
Write styles using familiar CSS property names. No utility class names to memorize.
🧬
Atomic CSS Output
Each CSS declaration becomes an atomic class, maximizing reuse and minimizing bundle size.
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Fully Customizable
Selectors, shortcuts, variables, keyframes, and a powerful plugin system.
🌐
Framework Agnostic
Works with Vite, Webpack, Rspack, esbuild, Rollup, Rolldown, Farm, and Nuxt.
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TypeScript First
Full autocomplete and type checking for every CSS property and custom config.
Are you an LLM? View /llms.txt for optimized Markdown documentation, or /llms-full.txt for full documentation bundle