freeCodeCamp
by freeCodeCampfreeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
In simple words: hacker101 is a free tool, for learning through games. It is completely free and open source — its code is public on GitHub, where 14,615 people have bookmarked it as worth using.
💡 A real-life example: A teacher puts lessons in a platform like this, and students watch, practise and get tested from home.
RepoEasy wrote this simple explanation from the project's public data — its category, topics and description — so a beginner can understand it before downloading anything. For exact technical details, the project's own README (linked below) is the final word.
Source code for Hacker101.com - a free online web and mobile security class.
This is the project's own description from GitHub — we show it as-is rather than inventing details.
This project is listed under Educational Games in Education & Learning, a category made for students, teachers, parents and lifelong learners.
Do I need coding knowledge? Basic Technical Setup. (Estimate based on project type: Learning/resource-style project or tagged for learners on GitHub. Always confirm from the repo's README.)
The source code is released under the NOASSERTION license. Open-source licenses like this usually allow free use, including commercial use — but always read the actual license file in the repository before relying on it. Note: the code being free does not mean hosted services, APIs or infrastructure around it are free.
Activity level: Quiet · Last code update: 22 Feb 2025 · Created: 27 Nov 2017 · Open issues: 3
Official links: Official Website ↗ · Releases ↗ · Documentation (README) ↗
We never publish installation steps we have not verified — the README above is the source of truth.
⭐ 14615 stars · 🍴 2663 forks · 🐛 3 open issues · 💻 Language: SCSS · 📄 License: NOASSERTION · Default branch: master
freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
:books: Freely available programming books
All Algorithms implemented in Python
Free domain registration and practical DNS learning resources for everyone.
A book series (2 published editions) on the JS language.
《Hello 算法》:动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語,提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现