Cheat Notes For Dummies is an open-source organization creating quick, beginner-friendly reference guides for tech concepts, tools, and languages.
Our mission: One cheat sheet for every major technology.
Learn fast. Reference faster. Build smarter.
- 🎓 Students — quick exam prep and syntax reference
- 💻 Developers — fast command and API lookup
- 🔬 Researchers — technical quick reference
- 🧑💼 Professionals — just-in-time learning
| Icon | Category | Topics |
|---|---|---|
| 🗄️ | Databases | SQL, NoSQL, ORMs, queries |
| 💻 | Computer Science | Algorithms, data structures, complexity |
| 🔢 | Mathematics | Linear algebra, calculus, statistics |
| 🤖 | AI & ML | Machine learning, deep learning, NLP, LLMs |
| 🌐 | Networking | TCP/IP, DNS, HTTP, protocols |
| 🔒 | Cybersecurity | Pentesting, hardening, tools |
| 🐧 | Linux & OS | Bash, commands, system admin |
| 🖥️ | Hardware | CPU, memory, embedded systems |
| 🧑💻 | Programming | Python, C++, Rust, JavaScript, Go, Java |
| 🌍 | Web Dev | HTML/CSS, React, APIs, Next.js |
| ☁️ | Cloud & DevOps | AWS, Docker, Kubernetes, CI/CD |
| Repository | Description |
|---|---|
| sql-cheatsheet | SQL fundamentals, joins, subqueries, and window functions |
More coming soon! See categories above.
Want to add a cheat sheet? Here's how:
- Fork the repository
- Create a branch:
git checkout -b feature/add-topic - Write your cheat sheet in Markdown (
.md) - Commit:
git commit -m "Add: topic cheat sheet" - Push and open a Pull Request
✅ Do:
- Keep it concise — reference guides, not textbooks
- Use clear formatting and code blocks
- Include practical examples
- Credit sources when applicable
All repositories are licensed under the MIT License.
You're free to use, fork, modify, and share.
| Platform | Link |
|---|---|
| 🌐 Website | cheatnotes.github.io |
| 💻 GitHub | @cheatnotes |
| [email protected] | |
| 👤 Maintainer | @aw-junaid |
Made with ❤️ for the community · Cheat Notes For Dummies © 2025–2026
