John Flockton

simd-byte-lookup. SIMDized check which bytes are in a set

octane. React’s programming model, compiled. The successor to Inferno, carrying its performance-first goal forward:

regexp-get-prefix. A function that extracts the set of possible first consumed characters from a regular expression.

Accelerated-Zig-Parser. A high-throughput parser for the Zig programming language.

geode. Easy, secure access to your Obsidian vault from anywhere, for humans and agents.

simd-csv. Specialized Rust CSV readers/writers leveraging SIMD instructions.

simdjson. Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

astryx. An open source design system that's fully customizable and agent ready

mquickjs. Public repository of the Micro QuickJS Javascript Engine

jsir. Next-generation JavaScript analysis tooling

QuickLayout. QuickLayout is a production-ready declarative layout library for UIKit. Built for large-scale applications, it combines expressive Swift APIs with a lightweight layout engine to deliver high performance reliability, and long-term maintainability.

spy. SPy language

imgui. Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

deno. A modern runtime for JavaScript and TypeScript.

refuse. An easy-to-use, incremental, multi-threaded garbage collector for Rust

primjs. JavaScript Engine Optimized for Lynx

luau. A small, fast, and embeddable programming language based on Lua with a gradual type system.

scbe. SCBE is a compiler back-end library written from scratch

ripple. the elegant TypeScript UI framework

lexical-beautiful-mentions. A mentions plugin for the lexical text editor.

brimstone. New JavaScript engine written in Rust

rust-e262. Ecmascript interpreter in Rust

okapi. A lightweight performant JavaScript parser for Rust and WebAssembly

firefox. The official repository of Mozilla's Firefox web browser.

build-lua-in-rust. 《用Rust实现Lua解释器》 / _Build a Lua Interpreter in Rust_

typescript-types-only-wasm-runtime. A WebAssembly runtime implemented in TypeScript types

nederlang. Nederlandse programmeertaal 🇳🇱. Geïnterpreteerd en met dynamische types. Met bytecode compiler en virtuele machine, in Rust.

OxidizeVM. A stack based VM written in Rust

njs. A subset of JavaScript language to use in nginx

polygen. React Native WebAssembly support, super fast

rolldown-vite. The WIP version of Vite powered by Rolldown

Espruino. The Espruino JavaScript interpreter - Official Repo

fbtee. The JavaScript & React Internationalization Framework.

learning-v8. Project for learning V8 internals

strictly-pretty. A Rust implementation of the "Strictly Pretty" algorithm by Christian Lindig

agentql. AgentQL is a suite of tools for connecting your AI to the web. Featuring a query language and Playwright integrations for interacting with elements and extracting data quickly, precisely, and at scale. Includes REST API, Python and JavaScript SDKs, browser debugger.

ezno. A correct and efficient TypeScript type checker and compiler with additional experiments

nova. JS engine lolz

porffor. An ahead-of-time JavaScript compiler

ecosystem-issues. A place to keep track of ongoing efforts to improve performance in the JS ecosystem

portable-simd. The testing ground for the future of portable SIMD in Rust

llrt. LLRT (Low Latency Runtime) is an experimental, lightweight JavaScript runtime designed to address the growing demand for fast and efficient Serverless applications.

vim-visual-multi. Multiple cursors plugin for vim/neovim

ladybird. Truly independent web browser

react-compiler. Working group for using React Compiler in production

llvm-project. The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.

llvm. Project moved to: https://github.com/llvm/llvm-project

astexplorer. A web tool to explore the ASTs generated by various parsers.

maestro. Lightweight, Linux-compatible kernel, written in Rust to leverage the safety of the typesystem. Aiming to remove as much legacy as possible while supporting most usecases

quick-lint-js. quick-lint-js finds bugs in JavaScript programs

ratel-core. High performance JavaScript to JavaScript compiler with a Rust core

bevy. A refreshingly simple data-driven game engine built in Rust

tree-sitter-javascript. Javascript grammar for tree-sitter

tree-sitter. An incremental parsing system for programming tools

ts-ast-viewer. TypeScript AST viewer

hermes. A JavaScript engine optimized for running React Native.

dprint. Pluggable and configurable code formatting platform that unifies all your formatters.

dart_style. An opinionated formatter/linter for Dart code

lazy.nvim. 💤 A modern plugin manager for Neovim

kickstart.nvim. A launch point for your personal nvim configuration

servo. Servo aims to empower developers with a lightweight, high-performance alternative for embedding web technologies in applications.

Launch.nvim. 🚀 Launch.nvim is modular starter for Neovim.

putting-the-you-in-cpu. A technical explainer by @kognise of how your computer runs programs, from start to finish.

estree. The ESTree Spec

cs6120. advanced compilers

TypeScript. TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

react-curse. Fastest terminal UI for react (TUI, CLI, curses-like)

invidious. Invidious is an alternative front-end to YouTube

million. Optimizing compiler for React

GulfOfMexico. perfect programming language

social-app. The Bluesky Social application for Web, iOS, and Android

lexical-ios. Lexical iOS is an extensible text editor framework that integrates the APIs and philosophies from Lexical Web with a Swift API built on top of TextKit.

swc. Rust-based platform for the Web

core-js. Standard Library

lexical-401. An unauthorized library of Lexical nodes, plugins, and more

Koenig. Components of Ghost's Editor

leptos. Build fast web applications with Rust.

clips. Create short shareable screen recordings – all using web APIs

qwik. Instant-loading web apps, without effort

stevenjack.

banger-editor. (previously bangle-editor) Collection of higher level rich text editing tools. It powers the local only note taking app https://bangle.io

bun. Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

ent. An entity framework for Go

guide. The Uber Go Style Guide.

lexical. Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

eslint-plugin-header. ESLint plugin to ensure that files begin with given comment

dts-bundle-generator. A tool to generate a single bundle of dts with types tree-shaking

DALL-E. PyTorch package for the discrete VAE used for DALL·E.

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

flowgen. Generate flowtype definition files from TypeScript

wireit. Wireit upgrades your npm/pnpm/yarn scripts to make them smarter and more efficient.

Framework-Laptop-13. Documentation for the Mainboard and other modules in the Framework Laptop 13

svelte-lexical. Rich text editor for Svelte based on lexical

uniffi-rs. a multi-language bindings generator for rust

sandpack. A component toolkit for creating live-running code editing experiences, using the power of CodeSandbox.

lapce. Lightning-fast and Powerful Code Editor written in Rust

esbuild. An extremely fast bundler for the web

react-18. Workgroup for React 18 release.

isjoshat.work. HTML

Cypress-Recorder. A dev tool that records user interaction with a web application and generates cypress code to allow the developer to replicate that particular session.

helix. A post-modern modal text editor.

elsa. ❄️ Elsa is a minimal runtime for JavaScript and TypeScript written in Go

openmct. A web based mission control framework.

tax-tools. A collection of tools to help manage taxes 👮🏻‍♂️

server-components-demo. Demo app of React Server Components.

iced. A cross-platform GUI library for Rust, inspired by Elm

docusaurus. Easy to maintain open source documentation websites.

py-myopl-code. Interpreter for a BASIC-inspired language written in Python for my tutorial series on YouTube

boa. Boa is an embeddable Javascript engine written in Rust.

playwright-video. 🎬 Save a video of a Playwright page

ts-migrate. A tool to help migrate JavaScript code quickly and conveniently to TypeScript

berry. 📦🐈 Active development trunk for Yarn ⚒

Recoil. Recoil is an experimental state management library for React apps. It provides several capabilities that are difficult to achieve with React alone, while being compatible with the newest features of React.

coding-interview-university. A complete computer science study plan to become a software engineer.

rabbit_mq. 🐇 Build consistent and well-balanced Producer/Consumer pipelines

oak. A middleware framework for handling HTTP with Deno, Node, Bun and Cloudflare Workers 🐿️ 🦕

destiny. Prettier for File Structures

open-and-shut. Type in Morse code by repeatedly slamming your laptop shut

You-Dont-Know-JS. A book series (2 published editions) on the JS language.

tools. Unified developer tools for JavaScript, TypeScript, and the web

lighthouse. Automated auditing, performance metrics, and best practices for the web.

playwright. Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

react-native-cookie-store. Cookie manager for react-native

FxSQL. Node.js Functional SQL Query Builder & ORM

csstype. Strict TypeScript and Flow types for style based on MDN data

react-simple-crop. ✂️ A React component library for cropping and previewing images

es-react. ES6 module exposing the latest version of react and react-dom

spleeter. Deezer source separation library including pretrained models.

stencil-code-highlighter. Tutorial creating a code highlighter component using Stencil

how-web-works. What happens behind the scenes when we type www.google.com in a browser?

react-spring-tutorial. A React Spring tutorial written for Web Designer magazine

json-cyclic. Small utility library to replace circular references in JavaScript with JSONPaths

sauron. A versatile web framework and library for building client-side and server-side web applications

next.js. The React Framework

ValueOf. Deal with Primitive Obsession - define ValueObjects in a single line (of C#).

microbundle. 📦 Zero-configuration bundler for tiny modules.

gif2xlsx. Convert GIFs to XLSX format

hyperapp. 1kB-ish JavaScript framework for building hypertext applications

typed-html. Type checked JSX for Rust

create-react-native-app-typescript. Create a React Native app using Typescript on any OS with no build config.

webapp.rs. A web application completely written in Rust. 🌍

slackov. Python

get-me-a-date. :heart_eyes: Help me get a :cupid: date tonight :first_quarter_moon_with_face:

react-native-dom. An experimental, comprehensive port of React Native to the web.

proposal-optional-chaining. HTML

redux-persist. persist and rehydrate a redux store

switching-to-contracting-uk. A step by step guide of how to start contracting in United Kingdom

localtunnel. expose yourself

rough. Create graphics with a hand-drawn, sketchy, appearance

caire. Content aware image resize library

fela. State-Driven Styling in JavaScript

driver.js. A lightweight, dependency-free JavaScript library for guiding user focus across the page.

boomerang-socket. Simple automatic reconnecting WebSocket

PlanOut.js. A JavaScript port of Facebook's PlanOut Experimentation Framework

coinbase-node. DEPRECATED — The official Node.js library for the Coinbase API.

floating-ui. A JavaScript library to position floating elements and create interactions for them.

react-beautiful-dnd. Beautiful and accessible drag and drop for lists with React

ring-ui. A collection of JetBrains Web UI components

flag. Best-in-class interface for working with feature flags in TypeScript-based React applications

fixed-data-table-2. A React table component designed to allow presenting millions of rows of data.

react-power-select. A highly composable & reusable select/autocomplete components

react-native-chat-tutorial. A step-by-step tutorial to create your own Chat app with React Native

react-page. Next-gen, highly customizable content editor for the browser - based on React and written in TypeScript. WYSIWYG on steroids.

Chaos. A social coding experiment that updates its own code democratically.

hacker-scripts. Based on a true story

normalizr. Normalizes nested JSON according to a schema

draft-js. A React framework for building text editors.

draft-convert. Extensibly serialize & deserialize Draft.js ContentState with HTML.

redux. A JS library for predictable global state management

components. Component infrastructure and Material Design components for Angular

stylelint. A mighty CSS linter that helps you avoid errors and enforce conventions.

tabitha. JavaScript library for creating tabs.

react-redux-universal-hot-example. A starter boilerplate for a universal webapp using express, react, redux, webpack, and react-transform

react-howto. Your guide to the (sometimes overwhelming!) React ecosystem.