What is… every popular GitHub repo?
Popular GitHub repositories, each answered in plain English for non-coders: what it is, its tech stack, and how to run it. Pick any to read the answer.
By language: Python · TypeScript · JavaScript · Go · C++ · Rust · Java · C · HTML · Shell · C# · Jupyter Notebook · Swift · PHP · Kotlin · Ruby
- modernizr/modernizrModernizr is a JavaScript library that detects which web features a visitor's browser supports, so you can ser
- mbeaudru/modern-js-cheatsheetA reference guide that explains modern JavaScript syntax (ES6+) with clear examples — designed for developers
- go-kratos/kratosGo framework for building microservices with built-in HTTP/gRPC, tracing, metrics, service discovery, and conf
- vernesong/openclashOpenClash is a router plugin that runs a network proxy client on OpenWrt, so every device on your home network
- sdwebimage/sdwebimageSDWebImage is an iOS/macOS library that loads images from URLs in the background, caches them automatically, a
- subframe7536/maple-fontA free, open-source monospace font for code editors and terminals with rounded characters, programming ligatur
- ageron/handson-mlJupyter Notebooks with machine learning code and exercises from the first edition of the O'Reilly book 'Hands-
- wg-easy/wg-easyA self-hosted Docker container that wraps WireGuard VPN in a browser-based admin dashboard, so you can manage
- argotorg/soliditySolidity is the programming language for writing smart contracts on the Ethereum blockchain — self-executing p
- nilbuild/driver.jsA dependency-free 5KB JavaScript library that creates spotlight overlays to highlight page elements, used for
- deskflow/deskflowA tool that lets you share one keyboard and mouse across multiple computers on the same network — move the cur
- robertdavidgraham/masscanAn extremely fast TCP port scanner that can scan the entire public internet in under five minutes by sending 1
- kataras/irisA high-performance, batteries-included web framework for Go with built-in HTTP/2, WebSockets, gRPC, MVC archit
- request/requestA now-deprecated JavaScript library that simplified HTTP requests in Node.js by wrapping the built-in HTTP mod
- matterport/mask_rcnnA Python implementation of Mask R-CNN that detects every object in a photo, draws a bounding box, and paints a
- hcengineering/platformSelf-hosted all-in-one platform combining project management, team chat, documents, HR, and CRM in one app ins
- rancher/rancherAn open-source platform that adds a unified web dashboard over multiple Kubernetes clusters, letting teams dep
- pppscn/smsforwarderAndroid app that monitors SMS, calls, and notifications, then forwards them to messaging platforms, email, web
- swordfish90/cool-retro-termA fully functional terminal emulator styled to look like vintage CRT monitors from the 1970s and 80s, with sca
- nativescript/nativescriptWrite mobile apps once in TypeScript/JavaScript, compile to true native iOS and Android apps with real native
- zloirock/core-jsCore-js is a polyfill library that fills in missing modern JavaScript features so your code runs correctly in
- black-forest-labs/fluxFLUX is an AI image generation library that turns text prompts into pictures and edits existing images, with m
- pbakaus/impeccableA design language and command set that teaches AI coding assistants to produce polished, distinctive UI design
- codephiliax/chat2dbAI-powered database client that lets you query databases using plain English instead of SQL, with support for
- graphiteeditor/graphiteGraphite is a free, open-source 2D graphics editor with a nondestructive node-based workflow for vector and ra
- zhaoolee/chromeappheroesA curated Chinese-language guide to 130+ useful Chrome extensions with plain-language explanations for each on
- babylonjs/babylon.jsBabylon.js is an open-source 3D game and rendering engine that runs entirely in the browser, letting you build
- keon/algorithmsA clean, well-documented collection of classic data structures and algorithms implemented in Python 3, designe
- crosstalk-solutions/project-nomadA self-contained offline server bundling Wikipedia, Khan Academy, maps, AI chat, and tools—install once on a c
- hollischuang/tobetopjavaerA comprehensive Chinese-language study guide covering 500+ Java interview questions and 60,000+ words on core
- changkun/modern-cpp-tutorialA practical guide to modern C++ features (C++11 through C++20) for developers familiar with older C++, with co
- schniz/fnmfnm is a fast command-line tool for installing and switching between multiple Node.js versions, built in Rust
- alexsjones/llmfitTerminal tool that scans your hardware and recommends which AI language models will run well on your computer,
- shap/shapSHAP is a Python library that explains why a machine learning model made a specific prediction by scoring each
- jakewharton/butterknifeButter Knife was an Android library that replaced repetitive UI wiring code with simple annotations — now offi
- cinnamon/kotaemonSelf-hosted chat interface that lets you ask questions about your own documents using AI, with answers backed
- bazelbuild/bazelBazel is a fast, reliable build system that only rebuilds code that actually changed, supports multiple progra
- beyonddimension/steamtoolsCross-platform toolkit for Steam users that unblocks community access via local proxy, manages accounts, and h
- asdf-vm/asdfSingle command-line tool to manage multiple versions of programming languages and runtimes across projects, re
- microsoft/typescript-goMicrosoft's experimental TypeScript compiler rewritten in Go for dramatically faster build times. Available as
- zama-ai/fhevmFHEVM is a framework that brings data privacy to Ethereum-compatible blockchains using fully homomorphic encry
- homebridge/homebridgeHomebridge is a lightweight home server that bridges unsupported smart home devices to Apple HomeKit, so Siri
- multica-ai/multicaAssign coding tasks to AI agents like Claude and Copilot as if they were team members. They work autonomously,
- gfwlist/gfwlistA community-maintained list of websites blocked by China's Great Firewall, used by proxy tools to automaticall
- johnshall/shadowrocket-adblock-rules-foreverDaily-updated routing rules for Shadowrocket iOS app that intelligently decide which websites go through a pro
- gocolly/collyColly is a Go web scraping and crawling framework that handles cookies, rate-limiting, caching, and parallel r
- javascript-tutorial/en.javascript.infoFree, comprehensive JavaScript tutorial covering basics to advanced topics, written in Markdown and published
- goldfire/howler.jsHowler.js is a 7KB JavaScript audio library that makes playing sounds in web browsers reliable across all plat
- jenkinsci/jenkinsJenkins is an open-source automation server that watches your code repository and automatically builds, tests,
- wilfred/difftasticA command-line diff tool that understands code structure, showing what actually changed logically instead of j
- tree-sitter/tree-sitterTree-sitter is a fast, error-tolerant parser generator that converts source code into structured syntax trees
- zai-org/open-autoglmOpen-source AI phone agent that automates Android and iOS tasks by understanding screenshots and executing tap
- bitcoinbook/bitcoinbookThis is the full free text of Mastering Bitcoin, a technically detailed book explaining how Bitcoin actually w
- max-eee/neopassChrome extension that bypasses exam restrictions and adds AI-powered question answering for online test platfo
- googlechromelabs/squooshA browser-based image compressor that shrinks photos and graphics locally on your device without uploading to
- withfig/autocompleteCommunity database of autocomplete specs for terminal commands. Describes what flags, subcommands, and argumen
- scwang90/smartrefreshlayoutAndroid library that adds pull-to-refresh and load-more gestures to lists and feeds with automatic detection o
- pulumi/pulumiPulumi is an Infrastructure as Code tool that lets you define and manage cloud resources on AWS, Azure, Google
- lucidrains/vit-pytorchPyTorch implementation of Vision Transformer (ViT) for image classification, treating image patches as tokens
- zulip/zulipZulip is an open-source team chat application that organizes every message into topic threads within channels,
- neoclide/coc.nvimCoc.nvim is a Vim and Neovim plugin that adds VS Code-style smart coding features — autocomplete, error highli
- dimsemenov/photoswipeA lightweight JavaScript image gallery and lightbox that works on desktop and mobile without requiring any fra
- junyanz/pytorch-cyclegan-and-pix2pixThis repo provides PyTorch implementations of CycleGAN and pix2pix — two AI models that transform images from
- deepset-ai/haystackHaystack is an open-source Python framework for building AI-powered apps that connect large language models to
- icsharpcode/ilspyILSpy is a free tool that lets you read the source code of any compiled .NET program, even when you don't have
- tayllan/awesome-algorithmsA curated directory of the best places online to learn and practice algorithms — covering videos, books, inter
- pypa/pipenvPipenv is a Python tool that combines virtual environments and package management into one simple workflow, en
- libgdx/libgdxlibGDX is a free Java game development framework that lets you write a game once and deploy it to Windows, Mac
- simple-icons/simple-iconsSimple Icons is a free collection of 3,400+ SVG logos for popular brands — GitHub, Discord, Twitter, and more
- tsenart/vegetaVegeta is a command-line load testing tool that floods your web server with requests to measure how it holds u
- mxgmn/wavefunctioncollapseAn algorithm that generates new images or tile maps by learning patterns from a single example, creating infin
- angular/componentsThe official Angular UI component library from Google — gives Angular developers ready-made buttons, forms, ta
- prefecthq/fastmcpPython framework for building MCP servers and clients that let AI language models connect to your tools, datab
- netbirdio/netbirdNetBird automatically connects all your devices — servers, laptops, phones — into a secure private network usi
- v8/v8V8 is Google's JavaScript engine — the software inside Chrome and Node.js that converts JavaScript code into f
- lissy93/dashyDashy is a self-hosted personal dashboard you run on your own server, collecting links to all your apps and se
- karakeep-app/karakeepSelf-hosted bookmarking app with AI-powered tagging, full-text search, and page archiving for people who save
- usestrix/strixAI-powered security testing tool that automatically finds real vulnerabilities in your code by acting like a h
- eip-work/kuboard-pressA free web dashboard for managing Kubernetes clusters visually, replacing command-line tools with forms, logs,
- humansignal/labelimgLabelImg is a desktop app for drawing labeled bounding boxes around objects in images, creating training data
- luong-komorebi/awesome-linux-softwareA curated directory of Linux applications and tools across dozens of categories—from audio editors to window m
- charmbracelet/glowGlow is a command-line tool that renders Markdown files beautifully in your terminal with proper colors and fo
- fastai/fastbookThe Jupyter Notebook source files for the book "Deep Learning for Coders with Fastai and PyTorch" — a free, pr
- mvanhorn/last30days-skillAn AI agent skill that searches Reddit, Twitter, YouTube, TikTok, and prediction markets to show you what peop
- responsively-org/responsively-appResponsively App is a desktop browser that shows your website on multiple device screen sizes simultaneously,
- highlightjs/highlight.jsHighlight.js is a JavaScript library that colors code blocks on any web page with automatic language detection
- nextai-translator/nextai-translatorBrowser extension and desktop app that uses ChatGPT to translate, polish, and summarize text in 55 languages w
- cookiecutter/cookiecutterCookiecutter is a command-line tool that generates new project directories from templates, filling in your pro
- gpakosz/.tmuxOh my tmux! is a drop-in tmux configuration that adds a polished status bar, smarter keyboard shortcuts, mouse
- taosdata/tdengineTDengine is an open-source database built for storing and querying billions of time-stamped sensor readings ef
- openai/gpt-2OpenAI's original code and model weights for GPT-2, the 2019 language model that could generate fluent text, a
- predidit/kazumiA cross-platform anime streaming app that lets users write custom rules to pull episodes from any website, the
- apache/skywalkingApache SkyWalking is an open-source monitoring system that collects traces, metrics, and logs from distributed
- rikkaapps/shizukuAndroid library that lets apps access system-level APIs by routing requests through a privileged background se
- kovidgoyal/calibreCalibre is a free, all-in-one e-book manager for organizing your digital book collection, converting between f
- plausible/analyticsPlausible Analytics is a privacy-first, open-source alternative to Google Analytics that tracks website visito
- nylas/nylas-mailOpen-source desktop email client with a plugin architecture, built with Electron and React. Lets developers cu
- haotian-liu/llavaOpen-source AI model that understands images and text together, letting you ask questions about pictures and g
- proxyee-down-org/proxyee-downAn open-source HTTP download accelerator that acts as a local proxy to speed up file downloads by splitting th
- vuejs/devtools-v6Browser extension that lets you inspect Vue.js app components, state, and interactions directly in your browse
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