LemonadeJS – A micro JavaScript library for building web interfaces

In plain words

LemonadeJS is a lightweight JavaScript library for creating web user interfaces. It offers developers a minimal framework for building interactive web applications without the overhead of larger alternatives. The library is designed for those who prefer a streamlined approach to web development, providing essential functionality for DOM manipulation and component creation in a compact package.

written from the facts on this page · September 2026

From the sources

Reactive components with a React-like API in ~9 KB gzip : zero dependencies, no build step. Designed for both human developers and AI agents. import { html, mount } from 'lemonadejs' ; const Counter = (props, { state }) => { const count = state( 0 ); return html`<div> <h1>${count}</h1> <button onclick="${() => count.value++}">+1</button> </div>`; }; mount(Counter, document.getElementById( 'app' )); ● live: this exact code, running on this page Every component is published with a typed contract and checked against it. The result is machine-readable JSON, consumable by humans, agents, and CI. component('switch', { bind: false, label: '', onchange: Function, api: { toggle: Function }, }, fn);…from lemonadejs.net

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  Hey HN, We just released v5 of LemonadeJS, a micro-reactive library (~5.5KB compressed, no dependencies) that brings reactivity, scoped state, and JSX support to browser-native JavaScript. Key Features in v5: - Private reactive state for components - Scoped events for modularity - JSX support (via a Babel plugin) - children argument for nested components - Template literal interpolation - Improved DOM rendering performance Use it with plain JS, TypeScript, or JSX — no build step required. Ideal for browser tools, widgets, or building fast UIs without bundlers.…

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