git404hub

popular JavaScript repos on github, each explained in plain english: what it does, its stack, and how to run it.

• rhyssullivan/meshnetDeveloper tool that lets you run multiple dev servers at localhost:3000 simultaneously by routing each project
• sindresorhus/noop-processA tiny JavaScript utility that spawns a do-nothing background process, useful as a real target for testing pro
• staks-sor/free-deepseek-cliDesktop JavaScript tool that talks to DeepSeek's web chat by reusing a browser session captured at first login
• techjewel/mdreadA browser-based Markdown reader and editor that runs fully offline with no server, no account, and no data lea
• 09catho/axonLive interpretability tool that streams GPT-2's internal SAE feature activations into a 3D browser graph as th
• abdulrdeveloper/react--tic-tac-toeTwo-player Tic Tac Toe built with React and Vite as a learning project, with win and draw detection, reset but
• aijo24/ralph-architecture-sweepA Claude Code skill that scans a codebase for architecture problems and turns verified findings into ready-to-
• aycanozarpaci/seo-pro-max-skillA shared instruction file for AI coding assistants that handles SEO, accessibility, and schema markup setup. A
• bbharathbala/actual-budget-telegram-botA Telegram bot that logs household expenses by parsing chat messages like 'lunch 12.50' directly into Actual B
• brain-ai-biz/brain-edit-slidesA Canva-style visual editor injected into Claude Code generated HTML slide decks so you can tweak them without
• gaearon/hooks-perf-issuesA teaching demo showing how React hooks can make UI updates 4-5x slower than class components if callback func
• gaearon/reactjs.orgThe source code and docs behind reactjs.org, the official website that teaches people how to use React, a popu
• hamzayslmn/open-razerkitA Python tool and browser app for controlling Razer device RGB, effects, DPI, and laptop settings without inst
• happyfox-dot/msg2computerCodeBridge syncs SMS verification codes, TOTP codes, notifications, and clipboard content between your phone a
• hourizon/sysu-lms-script-version-2-A browser userscript for Sun Yat-sen University's online learning system that fakes video progress, auto-advan
• hrushik98/md2pdfgoA web app that converts Markdown into a clean, print-ready PDF, showing you a live preview as you type before
• hzchet/blockadeA browser-based multiplayer first-person shooter with a blocky, Minecraft-style world where red and blue teams
• jiaotangxq/obsidian-themeModular Obsidian home-page dashboard built on the Dataview plugin, with tiles for greetings, habits, journal,
• jjspscl/zen-notesA sticky-note widget that lives in the Zen Browser sidebar, giving you a persistent rich-text notepad with aut
• kakarotto-baroko/antigravity-2.0-zhcnA Chinese translation patch for the Antigravity 2.0 code editor that localizes menus, keyboard shortcuts, and
• mugisha-eric-250/true-friends-portfolioPersonal portfolio repository whose README is still the default Create React App template, so it describes CRA
• muhammadatef/kakashiKakashi scans files on your computer for secrets like API keys and passwords, replaces them with placeholder t
• mussabpro/kanatestA fully offline, browser-based quiz for learning Japanese hiragana and katakana — open the HTML file and start
• n8n-io/validate-n8n-pull-request-titleA GitHub Action that automatically checks pull request titles against n8n's naming rules, so releases and chan
• paarths-collab/hstackA toolkit that automates installing a self-hosted AI agent (Hermes) on your own server and connecting it to Te
• pluviobyte/contractspecA workflow add-on that forces AI coding assistants to agree on shared contracts before writing full-stack code
• ratelworks/token-horseA fun terminal statusline animation of a pixel horse that gallops faster the more tokens your Claude Code or C
• ruanyf/loppo-theme-oceandeepThe default ocean-inspired theme for Loppo, a documentation static site generator, giving docs sites a clean l
• ruanyf/tarimA lightweight JavaScript template engine using Lodash-style syntax to mix placeholders and logic into dynamic
• sartor87/ai-engineer-interview-conceptAn interview practice tool with an AI chat coach for AI Engineer interview topics, built on React, Azure Funct
• sonnedu/ai-model-iconsOpen library of 148 brand icons for AI models, products, and platforms, with SVG plus PNG rasters and an alias
• tridpt/twoplayergamesTwoPlayerGames is a self-hosted collection of 47 two-player browser games — classics like Connect Four, Battle
• uncmatteth/gbrain-bridgebrainA local service that gives GBrain text embeddings by piggybacking on your existing Codex CLI ChatGPT login, no
• vuenxx/v-managerA Windows desktop app for PC gamers that auto-scans your installed games across Steam, Epic, GOG, and Xbox, in
• watadarkstar/react-native-nsfw-detectorAn offline React Native library for iOS that detects nudity in images on the device itself, using Apple's Core
• yyx990803/de-indentA tiny utility that strips uniform extra leading whitespace from code snippets while preserving their meaningf
• yyx990803/html-webpack-pluginA webpack plugin that auto-generates an HTML file and injects your compiled JS/CSS bundle references, so you n
• yyx990803/socket-playA demo that turns your iPhone into a wireless controller for a browser-based HTML5 game using WebSockets, no a
• zhexulong/context-managerTool that mines agent chat history into reusable guidance files (decisions, processes, conventions) so later C
• zs520l/hanakoproA Windows desktop AI coding companion that reads and edits files, runs terminal commands, and remembers across
• azurecertprep/azurecertprep.github.ioStatic GitHub Pages site with 200+ hands-on Azure certification challenges (AZ-900, AZ-104, AZ-305, AZ-400, SC
• cheiineeey/always-hereA self-hosted AI companion that reads your Apple Watch health data and phone activity to decide on its own whe
• chentsulin/generator-koa2A Yeoman generator that scaffolds a ready-to-use Koa2 server project, so you skip manually creating folders, c
• emousedhm01/ffw-modsGitHub mirror of one modder's Far Far West game modifications, with each mod shipped as Unreal pak files to dr
• gaearon/javascriptAirbnb's JavaScript style guide — a rulebook of coding conventions with right/wrong examples to keep team code
• gaearon/react-windowA React library that renders only the visible rows of huge lists or tables, keeping scrolling fast even with t
• htlin222/oe-extensionA Chrome extension for clinicians and medical students that lets you highlight text on a medical website and i
• hughyau/helpmeaskA browser extension that rewrites your questions into clearer, more detailed prompts before you send them to A
• juliusbrussee/skillsSeven installable skills that make AI coding agents terser, better at UI design, and easier to trust over long
• mugisha-eric-250/employeepayrollmanagementsystemA full-stack employee payroll web app with a React front end, Node.js backend, and MySQL database — manages em
• ruanyf/markdown-it-katexA plugin that lets you write math equations in Markdown using LaTeX and have them render beautifully in the br
• ruanyf/worker-short-urlA lightweight URL shortener that runs on Cloudflare Workers, giving you a self-hosted short-link service with
• utopai-research/pai-proA local filmmaking studio app you run in a browser and control by chatting with an AI coding agent — describe
• vincentng295/magic_v2rayA Magisk/KernelSU module for rooted Android that routes all device traffic through a proxy at the Linux kernel
• yyx990803/showmeA command-line tool that opens the GitHub source page for any npm package with a single command.
• 100/tab-organizerA Chrome extension that groups your open browser tabs together by website, so tabs from the same site sit next
• chalarangelo/jsiqleA JavaScript library that lets you define schemas, models, and relationships and then query in-memory data lik
• davidkpiano/skylakeA lightweight JavaScript toolbox for building smooth web page animations and handling common front-end tasks w
• fares-nosair/opencode-agentrouter-supportLocal Node.js proxy that lets the OpenCode coding tool talk to AgentRouter models through an OpenAI-compatible
• gaearon/react-native-websiteThe source code behind the official React Native website and docs, built with Docusaurus and versioned so old
• gugao-bug/openart-auto-registerAn automated bulk account registration script for the OpenArt AI image platform that uses browser automation,
• idleprocesscc/co-reading-mcpA local server that lets you and Claude read books together — load EPUBs or text files, leave notes on passage
• joshuakgoldberg/goldblogGoldblog is Josh Goldberg's personal blog site, built with Gatsby to create fast-loading web pages from writte
• naemazam/github-profile-analyzerA web app that turns your GitHub activity into detailed insights, a composite developer score, and side by sid
• nyxawroo/ai-master-studioCross-platform Tauri desktop app that stores AI prompts and generated images locally, with prompt splitting, t
• o-l-l-i/comfyui-olm-liquifyA custom node for ComfyUI that adds a Photoshop-style Liquify editor so you can manually warp and reshape AI-g
• patrickjs/hackreactor-presentation-slidesA personal collection of browser-based presentation slides from a talk given during or after the Hack Reactor
• ruanyf/hn-summary-rssLikely an RSS feed of AI-generated summaries for Hacker News stories, though the README is empty so exact deta
• ryukenshin546-a11y/antigravity-projects-fixA small command-line tool that removes duplicate project entries in Google Antigravity 2.0, where one folder c
• sumedhkumar/vardhanA local dashboard you run on your own computer to watch live financial prices across up to eight charts at onc
• xchristech2/gaaju-md-ultraA Node.js WhatsApp bot with 255+ commands across AI, games, utility, group management, media, and search, with
• yyx990803/workerifyA lightweight JavaScript tool that turns a regular function into a background web worker inline, without needi
• agi-ruby/ai-gpt_image2-seedance_2.0-video-skillsTwo installable prompt skills that turn a rough video idea into structured, reusable prompts for GPT Image 2 s
• gaearon/react-auxA tiny React component that groups multiple elements together without adding an extra wrapper div to your HTML
• jeonghopark/collective-trajectoriesA real-time 3D visual art piece built with Three.js WebGPU: glowing filaments radiate from the center of a sph
• patrickarlt/custom-element-decoratorsA JavaScript library that uses decorator markers to cut down on repetitive setup code when building custom HTM
• rayhanadev/lightfetchA lightweight Node.js package for making simple HTTP requests with minimal dependencies and automatic body for
• roland-reed/nanachi-cliA command-line tool that converts React apps into WeChat, Alipay, or Baidu mini programs without rewriting the
• ruanyf/turpan-remove-spaceA CLI tool that strips spaces between English words and Chinese characters in Markdown files and outputs print
• x0cban/harnessAn open-source desktop HTTP/HTTPS proxy and web security testing toolkit with traffic interception, fuzzing, s
• yyx990803/angular.jsAngularJS is a JavaScript framework that automatically syncs your web page with your app's data, making it eas
• yyx990803/happypackHappyPack speeds up webpack builds by processing files in parallel across multiple worker processes instead of
• yyx990803/node-1The Node.js source code itself — the JavaScript runtime that lets you run JavaScript on servers and command li
• yyx990803/telekinesisTelekinesis simulates human touch gestures like taps, drags, and swipes in code, so you can automatically test
• abivan-tech/zvec-mcpA local server that indexes your project's source code and lets AI coding assistants search it by meaning rath
• ardupilot/dronecan-webtoolsA web-based dashboard for monitoring and configuring drone hardware over a DroneCAN network — check ESCs, test
• gaearon/reactoptA command-line tool that watches your React app while you use it and reports which components re-render more t
• gaearon/simplest-redux-exampleThe simplest possible example of Redux and React working together — a tiny teaching project stripped of all bo
• patrickjs/play-angular2An experimental project combining Angular 2 with Scala's Play Framework to server-render pages, sending ready-
• yyx990803/whipcreamAn experimental wrapper around webdriverjs that lets you write browser automation tests as one readable, chain
• adguardteam/recoveryA browser extension by the AdGuard team that likely helps users restore or fix AdGuard software when it stops
• adm1nsys/safari-ai-extensionA working reference example of a Safari extension generated by Apple Intelligence on OS 27, showing how to fin
• digitarald/chromeless-external-links-snippetA tiny dependency-free JavaScript snippet that opens external links in a new window so mobile web apps don't l
• gaearon/myappA ready-to-use React starter template that handles build setup, live-reload development, and production packag
• gaearon/react-devtoolsA browser extension that lets you inspect React app components, their props and state, and how they change in
• gaearon/redux-searchA Redux library that indexes your app's data in a background worker to power instant, client-side search witho
• gaearon/testcompAn empty-README JavaScript repo named testcomp; likely related to testing components, but no documentation con
• yyx990803/babel-loaderA Webpack plugin that automatically runs your JavaScript through Babel during bundling, so modern syntax gets
• yyx990803/choreo.jsA lightweight, event-based library for building interactive step-by-step walkthroughs where you control exactl
• yyx990803/eslint-plugin-prettierAn ESLint plugin that runs Prettier as a lint rule, so formatting problems show up alongside code-quality issu

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