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

📚 Freely available programming books

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

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

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

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

Command-line program to download videos from YouTube.com and other video sites

The Go programming language

Papers from the computer science community to read and discuss.

Gin is a high-performance HTTP web framework written in Go. It provides a Martini-like API but with significantly better performance—up to 40 times faster—thanks to httprouter. Gin is designed for …

Bitcoin Core integration/staging tree

"The mother of all demo apps" — Exemplary fullstack Medium.com clone powered by React, Angular, Node, Django, and many more

Open Source Continuous File Synchronization

The fastest path to AI-powered full stack observability, even for lean teams.

The Moby Project - a collaborative project for the container ecosystem to assemble container-based systems

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many mo…

Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS

Ansible is a radically simple IT automation platform that makes your applications and systems easier to deploy and maintain. Automate everything from code deployment to network configuration to clo…

SecLists is the security tester's companion. It's a collection of multiple types of lists used during security assessments, collected in one place. List types include usernames, passwords, URLs, se…

Original Apollo 11 Guidance Computer (AGC) source code for the command and lunar modules.

The Prometheus monitoring system and time series database.

📚 Collaborative cheatsheets for console commands

The Cloud Native Application Proxy

Standard Go Project Layout

Distributed reliable key-value store for the most critical data of a distributed system

⭐️ Companies that don't have a broken hiring process

Based on a true story

Your self-hosted, globally interconnected microblogging community

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

Gogs is a painless self-hosted Git service