LemonadeJS is an ultra-lightweight, reactive JavaScript micro-library that makes building dynamic user interfaces simple and intuitive by providing two-way data binding and component reactivity without any external dependencies or build steps. At roughly 5–7 KB, it works directly in the browser or with bundlers like webpack, enabling developers to create reusable, reactive UI components using pure JavaScript, JSX, or TypeScript while avoiding heavy frameworks. Its core reactivity system tracks changes to component state and efficiently updates only the affected parts of the DOM, which improves performance for both small widgets and larger applications. The library also offers powerful template syntax and lifecycle hooks so you can manage state, effects, loops, and events in a clear and expressive way while keeping your code close to native JavaScript.
Features
- Super lightweight reactive micro-library (~5–7 KB gzipped)
- Two-way data binding between state and UI
- No dependencies, no transpiling required
- Works in browser or with modern bundlers
- Supports JSX, TypeScript, or vanilla JavaScript
- Official components and UI plugins via ecosystem