What is Preact
Preact is a compact, React-compatible front-end UI library with a core of about 3KB. It offers a React-like API (such as Component, hooks, and JSX support), making migration and reuse within the existing React ecosystem easy.
Core features & highlights
- Tiny footprint: Extremely small bundle size, helping reduce first-screen load time.
- High performance: Lightweight virtual DOM and efficient update mechanisms.
- Compatibility: Highly similar to
React/ReactDOM, supporting most React features and third-party libraries. - Extensibility: Supports common needs like server-side rendering, routing, and state management.
Use cases & target users
Suitable for single-page applications, mobile web, micro-frontends, embedded component developers who are sensitive to performance and bundle size, as well as teams and individuals looking to migrate smoothly from React or build a lightweight frontend architecture.
Key advantages
- Small, efficient, and easy to learn;
- Low migration cost; reuses much of your React knowledge and ecosystem plugins;
- Good documentation and community support, making fast iteration and maintenance easier.