Andrea Giammarchi

A Fast & Light Virtual DOM Alternative

A triple-linked lists based DOM implementation.

A fast and minimal circular JSON parser.

A micro HTML/SVG render

A stand-alone working lightweight version of the W3C Custom Elements specification

Modern DOM functionalities for every browser

Simple polyfill for URLSearchParams standard

The hyperHTML strength & experience without its complexity 🎉

Homogeneous Collection Compressor

JSON does not handle circular references. Now it does

Isomorphic hyperHTML

some damn DOM fix for this damned browser

React-like Custom Elements via V1 API builtin extends.

A blend of @preact/signals-core and solid-js basic reactivity API

Map, WeakMap, and Set fast/simple shim for Harmony collections

Components for the DOM as you've never seen before

React like Hooks for lighterhtml

Diffing the DOM without virtual DOM

An Atomics based Proxy to simplify, and synchronize, Worker related tasks.

Event Driven JS

µhtml based Custom Elements

sqlite for node.js without gyp problems

An extensible class to define hyperHTML based Custom Elements.

A simple, and persistent, SQLite database for Web and Workers.

Bootable Electron Node JS Application

A textarea builtin extend to automatically provide code highlights based on one of the languages available via highlight.js

A general purpose, Web Worker driven, namespace exporter.

No description.

a browser and OS agnostic web driver for mobile and desktop

An essential diffing algorithm for µhtml.

micro hooks: a minimalistic client/server hooks' implementation

Extensible, general purpose, React like hooks for the masses.

Secured and reliable Proxy based utilities for more or less common tasks.

A minimalistic version of socket.io that weights about 1K instead of 60K.

A module to escape/unescape common problematic entities done the right way.

A Vue 3 inspired Custom Elements toolless alternative.

The tiniest yet most powerful JS utility ever :D

No description.

JSON Homogeneous Collections Packer

The easiest way to augment DOM builtin elements.

essential unit test framework

A dynamic import() polyfill

A micro, all-in-one, compressor for common Web files.

The easiest way to use hyperHTML

archibold.io

Introspection for serializable arrays and JSON friendly objects.

A minimalistic JS bundler

The i18n tag function utilitities

A fetch with Response abilities.

An extremely basic signals implementation.

A cross browser, electron-less helper, for IoT projects and standalone applications.

A µcompress based CDN utility, compatible with both Express and native http module

A DOM serializer based on LinkeDOM idea

An SSR HTML content generator.

Template literal tag based sqlite3 queries.

Abortable and Resolvable Promises.

A lightweight, worker driven, Electron alternative.

The easiest way to set, read, or update, CSS variables per each element.

SharedArrayBuffer always on.

wickedElements 🧙 with render hooks

A terminal oriented MD like syntax

Literally the only sane way, if not the fastest one, to extend the Function class witohut evaluation.

handle elements lifecycle through CSS selectors

A structured clone equivalent able to encode and decode as a buffer.

A better custom-elements-builtin polyfill, Safari only

Bidirectional Server-sent Events

Breaking JS Class Constrains

Notification channel for the past, the present, and the future.

Iterable WeakMap, WeakSet and WeakValue

Lazy loading Custom Elements and their styles without even thinking about it.

A file tree component for the web

Enables `connected` and `disconnected` element's listeners.

A base64 encoder/decoder with gzip or deflate abilities.

uhtml for Service Worker, Web Worker, NodeJS, and other SSR cases

An unobtrusive customElements V1 polyfill

Pretty Cool Elements

A minimalistic version of coi-serviceworker.

A minimalistic, framework agnostic, lazy Custom Elements loader

A Map with weakly referenced values, instead of keys

A minimalistic Preact-like signals implementation.

A builtin-elements based µce alternative.

An easier to bootstrap sql.js

An essential markdown-like utility for console logs

A safe Uint8Array to base64 string converter

An all-in-one implementation of the Reactive State for Data & DOM patterns.

It's lighterhtml with `onconnected`, `ondisconnected`, and `onattributechanged` events

Setup any element as if it was a Custom Element

W3C Touch Events for IE10 and IE11 Mobile

The one-stop shop solution for JS Proxies and FFI APIs.

One way shared/worker async bindings.

alien-signals with a Preact signals like API

Fly.io with Bun and SQLite.

HTML & SVG Custom Elements.

A seamless history manager with pushstate notification.

String utilities that understand terminal escape sequences.

A general purpose utility to allow interpolation values as static parts of a template literal tag.

A MutationObserver dis/connected helper.

A minimalistic CSS style injector

An ever growing Set based utility to optimize JSON, IndexedDB, or postMessage.

A minimalistic signals implementation for vanilla DOM/JS

A safer loop for sync or async unique use cases.

An essential connected/disconnected DOM helper

A type safe JS runtime

A fast and lightweight Map based LRU implementation.

A minimalistic DOM element creation library.

A minimalistic boilerplate to wait for Custom Elements, or libraries, definition

A gzip/deflate compressor based on De/CompressionStream buffers and base64

WIP about persistent fragment proposal alternative

An `{emoji: 'Short Name'}` dictionary via emoji-essential.

A Map that acts like an object literal to better reflect Python dictionaries in JS.

An easy, SerialPort based, MicroPython REPL for micro controllers.

No description.

Dual module with empty exports for many cases.

An emoji dictionary directly from https://unicode.org/

Automatically create an importmap script.

Automatically create an importmap script.

A minimalistic, safe, chat oriented, markdown-ish utility.

A customElements like registry for user-land libraries

Using promises as generic event listener.

A remotely reflected Foreign Function Interface

coming soon

A MutationObserver that automatically picks up Shadow Roots when/if needed.

Emscripten FS, PATH and PATH_FS utilities as a module

A 25 LOC utility to define and create records via objects literals.

Same as setTimeout and setInterval but pinned to the clock

The uhtml template parser

A standard based way to retrieve the constructor of any given HTML tag name.

Automatic JSON via dataset `json` attribute.

Vercel SQLite ip2location demo

Pack JSON collections as TOON like format

A daily rate-limited way to have free storage in the wild.

An easy way to avoid leaks.

Tagged-template helpers for Cloudflare D1

This is my CS50x final project.

A super simple approach to SSR events handling through object literals.

An optionally sync promise that directly passes along its value.

A dedent alternative for just code.

A Promise.all companion with object literal super powers.

A collection of utility functions.

A simple way to retrieve a mime-type from an extension.

Flatted like approach brought to Uint8Array compatible values.

An efficient queue implementation for JavaScript.

No description.

A module that exports primitives that will bootstrap as module.

A unique session per tab idenfitier.

A minimalistic QR Code Scanner based on @zxing/library

My successful legacy AStar JavaScript code ported to my own repository

A safer and easy way to protect with password text or files.

A minimalistic AES-CBC and PBKDF2 based encryption/decryption utility for both Web and Servers.

A cached Proxy with optional timeouts per property to simplify complex remote scenarios.

A simple TOML subset parser.

the video speed driver

Iterable WeakMap and WeakSet.

A JSON registry for custom types.

A fast and efficient way to map arrays of strings as templates.

DataView with automatically grown buffer.

A `Proxy.isProxy(object)` utility.

A proposal to transport structured clone and post message complex references.

@swc/wasm-typescript module for browsers

Run a Bun/Deno cluster with a shared "worker" module.

A utility to simpify the repeated *unique ID* + *promise* dance.

A RegExp URL Redirector.

A utility to simplify binding methods to references.

A linear a/sync values solver

A map to register urls for modules

DeepSeek 4 Flash Chat

An essential utility to create HTML or SVG content without leaking unnecessary nodes.

A tree-shaking friendly D&&BUG pattern with a tiny CLI helper to toggle the debugging flag on or off.

Updates around my OSS contributions.

A Symbol based leaky utility to store or retrieve a module.

PEP750 based t strings for both SSR and FE - WIP

Utility to create weakly referenced proxies

Translate strings to valid IDs to be used for FileSystemHandle API

Python to JavaScript signatures for ESM out of introspection.

Emscripten FS as sharable and recoverable Blob.

A feature detection to know if current code is compatible with ES2015.

A utility to generate unique ids for weak references.

it turns off or back on the ability for your machine to sleep

A utility to dispatch common events on EventTarget references or contexts

WIP

The PyScript Xmas card demo for 2023

A collection of bindings for various scenarios.

An unofficial Linux GUI client for Cloudflare Warp

WIP

No description.

PHP in Browser, powered by WebAssembly. Original Project by Oraoto, ES6 & Clang Upgrades by Sean Morris.

MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems

TypeScript for Tiny IoT Devices (ESP32, RP2040, ...)

DeepSeek 4 Flash local inference engine for Metal and CUDA

A minimal DOMTokenList Array based implementation.

Cloudflare’s documentation

TypeScript with a Borrow Checker. Multi-threaded, Tiny binaries. No GC. Easy to write.

PyScript is an open source platform for Python in the browser. Try PyScript: https://pyscript.com Examples: https://tinyurl.com/pyscript-examples Community: https://discord.gg/HxvBtukrg2

The web-based visual programming editor.

Redirects any Zoom meeting URL to its PWA counterpart.

A comparison of the performance of a few popular javascript frameworks

Snippets of Python code, running in your browser thanks to PyScript.

PHP HTTP Request handler for Node.js

A repo to publish live, reproducible, issues in browsers.

No description.