Master programming by recreating your favorite technologies from scratch.

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

😎 Awesome lists about all kinds of interesting topics

An opinionated list of awesome Python frameworks, libraries, software and resources.

A list of Free Software network services and web applications which can be hosted on your own servers

The library for web and native user interfaces.

Linux kernel source tree

An Open Source Machine Learning Framework for Everyone

Visual Studio Code

A curated list of awesome Go frameworks, libraries and software

JavaScript Style Guide

The React Framework

The Go programming language

Production-Grade Container Scheduling and Management

Build cross-platform desktop apps with JavaScript, HTML, and CSS

A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev

Node.js JavaScript runtime ✨🐢🚀✨

Empowering everyone to build reliable and efficient software.

Promise based HTTP client for the browser and node.js

A modern runtime for JavaScript and TypeScript.

A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet.

Set up a modern web app by running one command.

Deliver web apps with confidence 🚀

Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

An enterprise-class UI design language and React UI library

FastAPI framework, high performance, easy to learn, fast to code, ready for production

A utility-first CSS framework for rapid UI development.

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

Bitcoin Core integration/staging tree

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