whatisgithub

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 · Rust · C++ · HTML · Java · Shell · C · C# · Swift · Jupyter Notebook · PHP · Kotlin · Ruby

• rbnts/raceA tiny zero-dependency utility that adds a timeout to Promise.race, so async operations fail instead of hangin
• rc-chn/2026A minimal Vue 3 and Vite starter template using script setup syntax as a launching pad for new web projects.
• real-hearth/imposiumA desktop app that lays out PDF pages onto A3 sheets for printing and folding into a booklet, padding with bla
• realmullens/tributaryA self hosted remote recording studio that records each guest locally at full quality, then merges and edits t
• redxdevelopment/redexcompileRedEXCompile is a cross-platform desktop IDE built on the Monaco editor with its own RedEX language, AI assist
• regaan/litellm-vulnerability-researchSecurity research documenting three LiteLLM vulnerabilities: an authentication bypass, an SSRF flaw, and a san
• relequestual/git-worktree-watchA VS Code extension that automatically detects Git worktrees created outside of VS Code and registers them in
• relequestual/json-schemasA collection of rule templates (JSON schemas) that Microsoft uses to validate configuration files, catching er
• relequestual/json-validatorA Perl library that checks whether your data matches a set of predefined rules called a schema. It validates i
• remilagorce/brikksA local, spreadsheet-style sales prospecting tool for sourcing and enriching companies and contacts, with opti
• renchap/cookbooksA collection of Chef cookbooks — reusable server configuration recipes — though the README is empty and doesn'
• renereose/claudewatchA macOS app that shows a floating status board for multiple Claude Code sessions, so you can see which ones ne
• rentheria/llm-budget-capA TypeScript package that enforces hard spending limits on AI API calls using Redis, preventing unexpected bil
• repyh-labs/delta-mandate-shopify-benchmarksBenchmark data showing a standard Shopify AI agent buys the wrong product 27% of the time on constrained purch
• reyneill/turbosearchA TypeScript command line tool that gives AI agents fast, private semantic and keyword search over local docum
• reynsys/nexternelA self-hosted smart home system that reads sensors and controls switches over your own network using ESP32 dev
• riadh35/devaiA 100% local AI dev assistant for Windows that chats and takes actions on your files using Ollama models, with
• rick-clinton-jpg/whereismyfamiliarA rulebook that turns Claude into a game master for a short roleplay story, ending with an original 3D compani
• rion0709/agentshieldPython firewall library for AI agents that monkey-patches the OpenAI client to inspect prompts and responses f
• rishabh55122/aicoachAicoach is a Python library that watches your training loop's metrics and gives plain-English advice about ove
• rjzhb/miniobA simplified, educational database system that shows students how real databases parse SQL, store data, and ru
• rms80/ideoboardA browser-based, structured prompt editor and image graph for generating images with Ideogram's v4 model, with
• ro53ben/ha-trace-managerHA Trace Manager is a Home Assistant add-on that lets you bulk-change how many debug traces automations and sc
• rocenger/tg-alpha-monitorPython tool that logs into a personal Telegram account, records messages from accessible chats into SQLite, an
• rockeverm3m/airgent-play2A tool that makes AI agents speak task results out loud through AirPlay speakers instead of only sending text
• rodrifelix99/thesimsmodmanagerA free desktop app that helps Sims players organize, preview, enable, and disable their custom mods across all
• rodrigoandrigo/qemu-uwp-host-buildsThis repository provides prebuilt installer packages for a UWP-packaged version of the QEMU emulator, along wi
• rofrol/guix-qemu-adventuresguix-qemu-adventures is a running log of commands and fixes for running a Guix Linux disk image inside QEMU on
• rogerhu/python-sdkA Python library for connecting apps to Facebook's API, handling Facebook login, reading profile data, and pos
• rogerluan/poo-puc-campinas-2016A collection of Java coursework and assignments from an Object-Oriented Programming class at PUC-Campinas univ
• rohan-punj/iolboxA Windows-native app for building Cisco IOL and VPCS network labs with drawing, consoles, and Wireshark captur
• rohithmr12/yt-remoteYT Remote is a local, no-account tool that lets you control YouTube playback in your PC browser from your phon
• rohitpaulk/wingpanelWingpanel is the top menu bar for elementary OS's Pantheon desktop, built as a pluggable container that develo
• rollsro9/mod-agent-for-discord-An AI-powered Discord moderation bot that reads chat context to flag scams, spam, and harassment for human mod
• rome-protocol/rome-dexA decentralized exchange where one shared liquidity pool can be traded by both Ethereum-style and Solana walle
• romeo19361/sonacmsA database-free content management system that stores pages as JSON files and includes a block-based page edit
• ron537/cliplexA native Mac menu bar app that remembers clipboard history, stores reusable snippets, and runs quick one-key a
• rongtnt/claude-squelchA hook for Claude Code that trims noisy terminal output like test runs and installs down to the useful parts,
• rossvs/khj_fh6_ahk2An AutoHotKey script that automates grinding tasks in Forza Horizon 6, like farming skill points and in-game c
• rougier/homepageThis is the source code for a personal academic homepage, built with TeX for clean, document-style typography
• rougier/ipythonAn enhanced interactive Python shell with tab completion, syntax highlighting, and quick docs access for faste
• rougier/neuralfielddbsmodelA computational brain model simulating abnormal neural oscillations in Parkinson's disease, used to test theor
• rougier/rerun-repeat-reproduce-reuse-replicatePresentation slides on five practices — rerun, repeat, reproduce, reuse, replicate — for making scientific cod
• rouor/rouor-illustrationsA Codex and Claude Code agent skill that turns Chinese article ideas into hand drawn, paper craft style in-art
• roxsoulee/om3-recipe-studioAn unofficial Windows tool for editing OM SYSTEM OM-3 camera Recipe JPG and OM Workspace OES picture profile f
• rpl/fxos-gdg-firenze-2014This repository has no README, but its name suggests it relates to Firefox OS and a 2014 Google Developers Gro
• rqtqp/ros2_borunte_0707aA ROS 2 workspace and driver for controlling a real Borunte BRTIRUS0707A robotic arm through its HC1 controlle
• rully-saputra15/software-engineer-resume-refactorA collection of installable Agent Skills that help software engineers rewrite their resumes to meet top tech c
• rupak182/heychatHeyChat is a local-first desktop app for chatting with multiple AI providers (Gemini, OpenAI, Groq, Anthropic,
• rusmoody/guardrails-coreA zero-dependency Python and JavaScript library that acts as a safety check for money-moving actions. It lets
• rustdesk/muxnetA starter template for building on Bittensor, a blockchain network that rewards people for contributing useful
• rwgb/vibe-guardrailsVibe-guardrails is a Claude Code plugin that gives non-engineers safety habits for AI-assisted coding, includi
• rxliuli/imp-translateA browser extension that shows a bilingual translation beneath each paragraph of a web page on request.
• ryanmarr/parametric-disc-golfA web designer and OpenSCAD model for creating custom disc golf discs, with 28 famous mold presets, live cross
• s2fcore/s2f-lead-commander-coreS2F-Core is a self-hosted pipeline that scrapes public business data, uses a local AI model to qualify B2B sal
• s3yed/cognifyA lightweight typed knowledge-graph memory system for AI agents that combines vector search with graph relatio
• sablier-ai/finbenchFinBench tests whether AI-generated financial data keeps the real-world patterns that matter for risk modeling
• saeidee/gormGORM lets Go developers work with databases using Go code instead of raw SQL, automatically handling queries,
• safetype/blackbar-nanoA Python tool that finds and replaces personal information in text with labels, running entirely on your own c
• saif658/llmstatsA zero-infrastructure tool that benchmarks 47 free AI models from OpenRouter, Groq, and Mistral every 3 hours
• saint0x/my-skillsA personal collection of reusable AI agent skills, currently containing one first principles reasoning skill n
• saiprajoth/timescaledb-labA work-in-progress learning project practicing PostgreSQL and TimescaleDB skills for database support engineer
• sairaph/detect-harnessA tool that helps developers add their app's configuration to AI coding assistants like Cursor or Claude Deskt
• saitjr/stgalaxyviewAn iOS library that adds a ready-made animated galaxy particle effect to your app, without you having to build
• saivineeth147/skepticA tutorial repo that teaches you to build a small coding agent in Python, but the real focus is catching the a
• sakethkanchi/resume-radarA Claude skill that scores your resume against the same 120-point rubric used by HackerRank's AI screener, fet
• samar-gulati/algorithm-testerA Python framework that rigorously stress-tests trading strategy backtests to catch the many ways they can lie
• samzydd/sakani-design-systemA free, open-source React component library with over 45 accessible UI pieces, built to match a companion Figm
• sanbuphy/face-upscalers-onnxPython code that runs ONNX AI models to sharpen and upscale blurry or low-resolution faces in photos.
• sangaraju1988/latchA Python library adding idempotency, timeouts, circuit breaking, budget limits, and rollback sagas to AI agent
• sanjay-amu/kafka-sentinel-mcpA bridge that lets AI assistants like Claude inspect and diagnose Kafka data streaming systems. It is read-onl
• sapphi-red/node-midecA lightweight WebAssembly library that tells you whether an image file (GIF, APNG, WebP, HEIF/AVIF) is animate
• saqlvation/instapurgeA free local tool that scans your Instagram followers and automatically removes bots and mass-follow accounts.
• sarmenat0r/wdmc-ex2ultra-debianA guide and scripts for booting a WD My Cloud EX2 Ultra NAS device into plain Debian Linux from a USB stick.
• satanwoo/xuntaXunta appears to be a minimally documented web service or API deployed to Heroku and AWS, with no clear descri
• satasuk03/kimi-plugin-ccA Claude Code plugin that lets developers delegate coding tasks and deep reasoning to a separate AI assistant
• scourefoure/claude-chimeA Claude Code plugin that plays a sound when Claude finishes responding or needs input, so you don't have to k
• scrappy-builds/deskmail-aiA private, local Windows email app that connects to Claude Desktop so it can read, search, organise, and draft
• scylla23/modelduetA tool that pairs two AI models to split coding tasks: one plans and reviews, the other writes code. Runs insi
• sd10/snappyThis repository has no README or documentation, so its purpose can't be determined from the available informat
• seanbonner/reimaginingphilanthropyA book of markdown chapters describing a philanthropic fellowship program's philosophy on community, shared po
• sebastiaanspeck/magikAn Emacs plugin adding syntax highlighting, error checking, and a live interpreter for writing Magik code used
• secawa-com/plugin-auditorA Claude Code plugin that runs a static security audit of other Claude Code plugins and skills before you inst
• securedbyprince/zero-trust-identity-security-entra-idA hands-on demo showing how Microsoft Entra ID's identity security features work together to implement Zero Tr
• sekacorn/linux-of-aiA set of seven free, open-source tools for building AI systems that are portable, governed, measurable, and no
• sekera-radim/impriA human-approval inbox that sits between an AI agent's proposed action and it actually running, so a person ca
• selfmonk-web/flowsaveA Chrome extension that lets you save and restore named checkpoints of AI chat conversations, so you can retur
• selixes/gatewayA self hosted gateway that sits between your app and AI providers, automatically failing over, caching similar
• senberhu/ebpfA Go library that makes it practical to write, load, and run eBPF programs inside the Linux kernel for monitor
• senjai/frt-opsworks-cookbooksA small set of custom AWS OpsWorks cookbooks that tweak default server setup for Nginx and Unicorn on Ruby web
• senkouefn/void-clientA custom game client inspired by starblast.io that uses WebSockets to connect to and play a multiplayer space
• sentrytrace/attacksagaAn AI agent that automatically hacks a safe, legal practice target (OWASP Juice Shop) to prove security weakne
• seraphimserapis/ds4A small native inference engine that runs only the DeepSeek V4 Flash AI model, tuned for Apple Metal and CUDA
• serdarselimys/hexadogzbd-pybulletdemoA PyBullet physics simulation of a six legged walking robot, controllable with a joystick or keyboard.
• sergiodxa/elecalcA web-based calculator that solves common DC and AC electrical problems (voltage, resistance, current, power)
• serhii-londar/debugswiftDebugSwift is an on-device debugging panel for iOS apps that lets developers inspect network traffic, performa
• serhii-londar/geomagnetismA Swift toolkit that calculates Earth's magnetic field values — like the difference between true north and mag
• serhii-londar/ios-universal-linksA demo iOS app and web component showing how Universal Links work. When users tap a web link on an iPhone and
• serhii-londar/xcodewayXcodeWay is a free add-on for Apple's Xcode that adds menu shortcuts to instantly jump to commonly needed fold
• serprex/tnyfntAn undocumented, minimal C font library, likely aimed at rendering text with a small code and resource footpri

All repos · Explain any other repo →