Jason Miller

🥊 Tiny 200 byte functional event emitter / pubsub.

A tiny JavaScript event emitter under 200 bytes that lets separate parts of your app send and receive messages without being directly connected, with full TypeScript support for catching type mistakes at compile time.

Hyperscript Tagged Markup: JSX alternative using standard tagged templates, with compiler support.

📦 Zero-configuration bundler for tiny modules.

🐕 Bare minimum 500b fetch polyfill.

The Axios API, as an 800 byte Fetch wrapper.

🦎 Move an async function into its own thread.

🏗️ Run a module in a Web Worker.

🌶 350b / 650b state container with component actions for Preact & React

:battery: Starter project for an ES6 RESTful Express API.

:smirk_cat: A snarky 1kb Markdown parser written in JavaScript

🏗️ Automatically move a module into a Web Worker (Webpack loader)

🗃 Offload your store management to a worker easily.

Safe deep property access in 120 bytes. x = dlv(obj, 'a.b.x')

Consistent Web Workers in browser and Node.

🦑 Easy automatic (headless) browser testing with Jest's API, but powered by Karma & Webpack.

:dash: The 3 most useful ES7 decorators: bind, debounce and memoize

:guitar: Ready-to-rock Preact starter project, powered by Webpack.

Render JSX/Hyperscript to HTML strings, without VDOM 🌈

🍩 1kb minimally viable DOM Document implementation

🏬 200b key-value store backed by navigation state

Optimized Webpack Bundling for Everyone. Intro ⤵️

⛵️ Beautiful Array utilities for ESnext async/await ~

Next.js 9.3 + Preact = 21kB

:bookmark: <input type="tags"> like magic

Bind events to state. Works with Preact and React.

👷‍♀️ Use Web Workers in Jest / JSDOM 🌈

:loop: Preact integration for Redux (no shim needed!)

Task Worklet: explainer, polyfill and demos.

:card_index: Virtual List that only renders visible items. Supports millions of rows.

Demo of preact rendering an entire app in a Web Worker.

Build JSON using JSX 🌈 (may contain blood magic)

:zap: Render HTML5 as VDOM, with Components as Custom Elements!

:repeat: Preact + Redux Example Project

:boom: A collection of Preact Components that encapsulate Google's Material Design Lite.

Observes element size changes using a hidden iframe

:rocket: Beautiful desktop apps with Preact + Photon :heart:

:satellite: Render Preact components in (a) SPACE :milky_way: :stars:

A Step-by-step Guide to Preact + Webpack 2, without boilerplate!

⚙️ State machine -powered components in 250 bytes

🕳 Render Preact trees into other Preact trees, like portals.

👩‍⚖️ Dynamic licenses for your projects - no more LICENSE.txt!

:recycle: Minimal functional Virtual DOM rendering using Preact :bike:

🦊 📂 A dropbox client powered by Preact, Electron and Photon

Preact Component that renders homogeneous children only when visible

:bicyclist: Express REST resources as middleware mountable anywhere

No description.

No description.

💣 TodoMVC done in Preact. Under 6kb and fast.

Preact UI toolkit. 10x smaller than you think. Intuitive for humans+LLMs.

:bird: Expose Mongoose models as RESTful Express resources.

:dizzy: Create a modified babel preset based on an an existing preset.

:racehorse: How to use Preact in (native) ES2015, without Babel or JSX.

🕴 Render a Preact subtree into the Shadow DOM.

:bookmark: A text field that tokenizes input, for things like tags.

:peach: A mobile web / Android app for Peach! (peach.cool) :zap:

Like Linked State, but for Refs. Works with Preact and React.

Apply CSS transitions when adding or removing Preact components/elements

:guardsman: React's PropTypes, as a standalone module.

Unified Element Properties for the DOM

:white_check_mark: Add JSX assertions to Chai, with support for Preact Components.

transition-group ui component for preact

:speedboat: Demo of preact-compat + react-toolbox to reduce build size by 95%.

:horse: How to use Preact without Babel, ES2015 or JSX.

Rollup plugin to automatically preserve shebangs in entry modules.

:scroll: An infinitely scrollable list/datagrid. Handles millions of rows.

No description.

Preact CLI plugin that adds converts async/await to Promises.

:newspaper: A text field that supports HTML editing. :memo:

Use Preact Models + Signals from a server as if they lived on the client.

:newspaper: A Hacker News client written in Preact.

📺 Named views for Preact, with easy-as-pie linking between them.

:scroll: Hosted viewer for documentation.js JSON output.

Did you know you can use React Router with Preact, no -compat?

No description.

Simple JavaScript HTML parser.

:sleeping: REST abstraction so easy you could use it with your eyes closed. :zzz:

Returns a simple relative time string.

Babel preset to transform JSX into h() calls

Just Recharts pre-aliased for Preact.

Ask me stuff

No description.

Get a description of a JS object's shape.

CLI for calling successive MCP Server tools

No description.

developit's generic eslint config for libraries

:peach: JavaScript library for Peach (peach.cool) :zap:

:watch: A simple, CSS-only indeterminate spinner custom element.

My blog

Performance benchmarks for http://git.io/preact et al.

No description.

🎞 Find & replace postprocessing for Rollup output

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[DEPRECATED] :art: Use inline <svg> in Preact 4 and prior. :tulip:

Preact + styled-jsx = 💞

A set of React components implementing Google's Material Design specification with the power of CSS Modules

No description.

Make beats with Preact!

:heavy_dollar_sign: Fast, chainable and exstensible JavaScript library for building web applications.

:chestnut: Tiny inline AMD registry.

:muscle: Templating like the other ones, but not at all like the other ones.

:racehorse: A simple, configurable & instantiable caching wrapper around request.

a social network in the form of a RESTful API

A web service that generates build badges for Bamboo plans.

Component library for making games with React & React Native

Identify technology on websites.

:necktie: The library nobody wants but that is for some reason still mayor.

Traverses the DOM to strip whitespace-only Text nodes

Native File System API with legacy fallback in the browser

Converts basic markdown to HTML.

An itty bitty JSONP module

preact wrapper for "Material Components for the web"

No description.

A fork of devcert with SAN

process.nextTick() in the browser

Playground to test repaint rates of JS libs

A markdown editor for desktop

A micro web server so fast, it'll make you dance! :dancers:

:book: Preact documentation website.

Tiny wrapper around react-intl for seamless use in Preact.

⚓ A suite of high-performance tools for JavaScript and TypeScript written in Rust.

TinyAPI is a very small PHP framework for creating APIs. It maps URLs to methods of classes, so you can write real PHP. Write portable classes that return associative arrays, and use TinyAPI to expose them to the web with automatic output formatting. There is also magic.

How small can you make a full web chat in NodeJS?

Slimey, yet... satisfying.

Seamlessly play named "sprite" regions within a single shared audio file.

A Digital Audio Workstation, in your web browser.

A high-level network abstraction that makes working with REST APIs simple.

⏱ A simple method to invoke a function after the browser has rendered & painted a frame

Proxy to the Peach API

The simplest way to add authentication to your React app. Handles everything for you. Users, login forms, redirects, sharing state between components. Everything

Parallel task wrapper for Node-style callbacks

No description.

HTML template literals in JavaScript

🤹 Access thousands of icons as components on-demand universally.

I wanted to make a jsFiddle clone, because jsFiddle sucks (But, mine sucks more)

TaffyDB - an open source JavaScript Database for your browser

Ridiculously small CLI web server built using Node.JS.

Synchronous chaining plugin for puredom.

Run JS modules in their own threads.

Validation, 90's-style.

Delegate Responsibly®

React + Redux + Routing Stack for just 28kb

A tiny utility to colorize stdin/stdout

Next.js plugin for preact X

Cloud9 IDE - by javascripter for javascripters - Powered by Ajax.org

audiolib.js is a powerful audio tools library for javascript.

Firmware for the Xteink X4 e-paper display reader

A plugin for your agentic framework that optimizes code using the GEPA algorithm (Genetic-Pareto LLM-driven search).

No description.

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Declarative routing for React

JavaScript implementation of the reMarkable api

Minimal GraphQL client supporting Node and browsers for scripts or simple apps

Same as React's useCallback, but returns a stable reference.

Karma webpack Middleware

Simple and complete Preact DOM testing utilities that encourage good testing practices.

Show unread count as a badge on the Gmail icon

Report the results of Polymer/tachometer in a comment for PRs

HTMDX: Lightweight runtime for mdx-like markdown

View deoptimizations of your JavaScript in V8

No description.

Reverse engineering the controller that comes with the autonomous smart desks

Visual primitives for the component age. Use the best bits of ES6 and CSS to style your apps without stress 💅

This repository contains compatibility data for Web technologies as displayed on MDN

DocSearch - Configurations

Diffing the DOM without virtual DOM

AMP HTML source code, samples, and documentation. See below for more info.

A Photoshop (PSD) file parser in Javascript/Coffeescript

Render preact components with access to the produced virtual dom for testing.

No description.

A declarative, efficient, and flexible JavaScript library for building user interfaces.

Vite plugin that reimplements the Next.js API surface — deploy anywhere

typescript first jtd validator

The CDN for everything on npm

No description.

ES module parser powered by Rust

OpenTelemetry JavaScript Client

Next generation frontend tooling. It's fast!

A CSS Houdini Paint library for those who want to make their sites a little extra 💁🏻‍♀️

a simple flexible box layout implementation

:fire: React Drag To Select component (tiny, touch friendly, and no dependencies!)

🔍 Extension that detects which JavaScript libraries are running on a page

No description.

An enterprise-class UI design language and React UI library

CLI tool for Angular

CSS parser / stringifier for Node.js

Fast lexer to extract named exports via analysis from CommonJS modules

Working around a Safari IndexedDB bug

Random number generator using xorshift128+

Statistically rigorous benchmark runner for the web

No description.

:scream: Modern static website generator to create dynamic websites using React components :sparkles:

🍣 The one-stop shop for official Rollup plugins

PostCSS plugin to use CSS Modules everywhere

Extends CSS with the Houdini powers

Minimal example of suboptimal code generation with babel on JSX prop spreading

TopicDeck is a column based topical news reader

Low-overhead lexer dedicated to ES module parsing for fast analysis

Seamless integration between Rollup and PostCSS.

preact port of https://github.com/testing-library/react-hooks-testing-library

No description.