freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
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:books: Freely available programming books
Free domain registration and practical DNS learning resources for everyone.
FCC China open source codebase and curriculum. Learn to code and help nonprofits.
💿 Free software that works great, and also happens to be open-source Python.
Source code for Hacker101.com - a free online web and mobile security class.
A free, online learning platform to make quality education accessible for all.
✨ This pack of 100+ gopher pictures and elements will help you to build own design of almost anything related to Go Programming Language: presentations, posts in blogs or social media, courses, videos and many, many more.
Online collaborative Whiteboard that is simple, free, easy to use and to deploy
Free interactive 3D science lessons for high school · 铜匠实验室 · https://lab.tongjiang.app
Claudemy: an open-source alternative to Udemy and Coursera. Give Claude a topic, it researches the web and builds a course of 2-minute audio lessons with cited sources. A free Claude Code skill.
The universe in numbers. Free, open-source calculators for everything countable.
🗺️ Developer Roadmaps — 20 career paths, 870+ topics, 1,880+ free resources. PWA, certifications, community-driven. Your free guide from beginner to senior dev.