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Dev tools · alternatives · 2026

24 alternatives to LemonadeJS

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.…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1LA

    Reactive components with React-like patterns at ~9 KB gzip. Zero dependencies, zero build step, designed for humans and AI agents.

    2021 · lemonadejs.net · its alternatives →

  2. 2

    LemonadeJS is a 7KB reactive JavaScript micro-library offering two-way data binding. It is dependency-free, does not require transpiling, and works with webpack or directly in the browser. - lemonadejs/lemonadejs

    2022 · github.com · its alternatives →

  3. 3

    Hi HN! I created this lib in the need of a simple and tiny framework to easily do AJAX-style navigation / replacement of fragments in the page, in a web application. For people who don't want to use client-side-rendering and complex frameworks à la React, there are nowadays a few "HTML-over-the-wire" libraries, like HTMX, Unpoly or this super-tiny one Swap.js :) One other key thing is that no external tool is needed: no bundler, no webpack, no TypeScript compiler, no minification needed. Just write HTML, JS (+ your preferred server-side language: PHP, Python, etc.) and it works. The…

    2023 · github.com · its alternatives →

  4. 4

    :umbrella: Lightweight javascript library for DOM manipulation and events

    2018 · umbrellajs.com · its alternatives →

  5. 5

    Hi Everyone! My main motivation for making this was that I wanted something as powerful as Svelte or React but I wanted no build steps, no JSON API, and I wanted something as close to vanilla js as much as possible. I'm mainly a backend developer, and I wanted to simply return html with some interactive islands when I need to (whose components get 'hydrated' with by backend language's templates). Some key ideas: • It's centered around light dom web components • Uses a "reactive element", which uses observables for fine-grained reactivity • Rendering is done through lit-html's tagged…

    2023 · github.com · its alternatives →

  6. 6

    A tiny ~2kb library for building reactive interfaces in native JavaScript

    2025 · arrow-js.com · its alternatives →

  7. 7

    Build powerful & dynamic web applications – without limits

    2022 · nextjs.org · its alternatives →

  8. 8

    I built µJS because I wanted AJAX navigation without the verbosity of HTMX or the overhead of Turbo. It intercepts links and form submissions, fetches pages via AJAX, and swaps fragments of the DOM. Single tag, one call to `mu.init()`. No build step, no dependencies. Key features: patch mode (update multiple fragments in one request), SSE support, DOM morphing via idiomorph, View Transitions, prefetch on hover, polling, and full HTTP verb support on any element. At ~5KB gzipped, it's smaller than HTMX (16KB) and Turbo (25KB), and works with any backend: PHP, Python, Go, Ruby, whatever.…

    Mar 2026 · mujs.org · its alternatives →

  9. 9

    Hey HN, I'd like to share a fun project I've been working on: mizu.js. It's a js library that add functional attributes support into your html, designed to be a simple and flexible alternative to fully-fledged web frameworks (such as Vue, React, and Angular), while offering more capabilities than other lightweight options (like Alpine.js and htmx). As it's written using modern ES features and due to its isomorphic nature, it can be run in both browsers and runtimes (Node, Deno, Bun) without any changes. This makes it ideal for client-side and server-side rendering, as well as static site…

    2024 · mizu.sh · its alternatives →

  10. 10

    Faster user-land reimplementations for several common builtin native JavaScript functions. - codemix/fast.js

    2014 · github.com · its alternatives →

  11. 11AA

    Yes, another reactive UI framework for JavaScript. Bear with me, please... :-) I 'invented' the concept for this back in 2011, and it was used (as a proprietary lib) in various startups. Even though many similar open source libs have been released since, and boy have I tried a lot of them, none have been able to capture the elegance and DX of what we had back then. I might be biased though. :-) So I started creating a cleaned-up, modern, TypeScript, open source implementation for the concept about five years ago. After many iterations, working on the project on and off, I'm finally happy…

    2025 · aberdeenjs.org · its alternatives →

  12. 12

    A collection of CSS effects with a click to copy.

    2019 · emilkowalski.github.io · its alternatives →

  13. 13

    A tiny (~1kB minzipped) and extremely fast library for creating reactive observables via functions. - maverick-js/signals

    2022 · github.com · its alternatives →

  14. 14

    We're excited to announce Lowdefy V4, a full-stack web framework built on top of Next.js that simplifies building web applications, internal tools, admin panels, BI dashboards, and CRUD apps using YAML or JSON configuration files. New in V4: Next.js: Lowdefy now runs on top of the Next.js framework. All of Auth.js: App auth is now handled by Auth.js supported providers, adapters and callbacks and events, easy to configure, but all of which can be customized. Plugin extensibility: Apps can now be extended with any npm or pnpm workspace plugins. Our story: We have developed a simple…

    2021 · lowdefy.com · its alternatives →

  15. 15

    This TypeScript package allows you to safely execute JavaScript code within a WebAssembly sandbox using the QuickJS engine. Perfect for isolating and running untrusted code securely, it leverages the lightweight and fast QuickJS engine compiled to WebAssembly, providing a robust environment for code execution. Features - *Security*: Run untrusted JavaScript code in a safe, isolated environment. - *File System*: Can mount a virtual file system - *Custom Node Modules*: Custom node modules are mountable - *Fetch Client*: Can provide a fetch client to make http(s) calls - *Test-Runner*: Includes…

    2024 · github.com · its alternatives →

  16. 16

    Full reactivity JS/TS framework. Lightweight replacement of React + MobX + React Router. Very small and fast !! - PxyUp/Revact

    2019 · github.com · its alternatives →

  17. 17IM

    Hi! I made a React compatibility library for a Virtual DOM library (https://github.com/aidenybai/million). The idea is to have much faster rendering (a compiler optimizes virtual DOM beforehand) while ensuring the same developer experience React provides. This is very, VERY early stage, so be prepared for weird bugs / plugin incompatibility / etc. If you have any suggestions, I'd be more than happy if you replied in a comment with it! You can spin up the demo here >> https://stackblitz.com/github/aidenybai/million-react-compat

    2022 · its alternatives →

  18. 18

    Monkberry is blazingly fast, small 1kb and simple JavaScript library for building web user interfaces.

    2016 · monkberry.js.org · its alternatives →

  19. 19

    A blazing fast React alternative, compatible with IE8 and React 16. - NervJS/nerv

    2018 · github.com · its alternatives →

  20. 20

    Functional props composition for UI components (React & Vue)

    2018 · proppyjs.com · its alternatives →

  21. 21
  22. 22AT
  23. 23

    TL;DR: dagger.js is a buildless, runtime-only micro-framework that plays nicely with native Web Components. It uses HTML-first directives (e.g. +click, +load) so you can ship a page by dropping a single from a CDN—no bundlers, no compile step. Why I built it Modern stacks are powerful but often heavy: bundlers, compile steps, framework DSLs, local CLIs. For internal tools, small apps, and edge/serverless deployments, I wanted something you can view-source, paste into a page, and ship. What it is: Runtime-only: no build or VDOM compile; hydrate behaviors directly on HTML. HTML…

    2025 · daggerjs.org · its alternatives →

  24. 24AJ

    I've been building a web UI library for a side project of mine. I thought it might be useful to others, so I'm releasing it as open source. To put it simply, I realized that most of my pain points with React come from its declarative model ui=f(state). So I'm trying something that I'm calling "imperative JSX." Instead of treating JSX as the source of truth for your UI, it essentially becomes a query interface for DOM manipulation. I first had the idea for it a few months ago, and only began writing it in earnest last week, so it's extremely early and nowhere near production-ready. Still, I'd…

    2024 · npmjs.com · its alternatives →

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