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

A collective list of free APIs

📚 Freely available programming books

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

A complete computer science study plan to become a software engineer.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

The library for web and native user interfaces.

All Algorithms implemented in Python

Linux kernel source tree

This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core

🎓 Path to a free self-taught education in Computer Science!

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

An Open Source Machine Learning Framework for Everyone

A book series (2 published editions) on the JS language.

Visual Studio Code

Flutter makes it easy and fast to build beautiful apps for mobile and beyond

A curated list of awesome Go frameworks, libraries and software

Master the command line, in one page

Get up and running with OpenAI gpt-oss, DeepSeek-R1, Gemma 3 and other models.

JavaScript Style Guide

The React Framework

Curated coding interview preparation materials for busy software engineers

The Go programming language

Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

Coding articles to level up your development skills

🦜🔗 The platform for reliable agents.

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