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📋 Free Cheat Sheets

Cheat Sheets & Exam Prep

102 free cheat sheets for developers, engineers and certification candidates. Every guide condenses one topic into concise chapters you can read in minutes — then drill the companion flashcards or sit a timed practice exam. No signup required.

AI 8 guides

AI Agents (500 Questions) Cheat Sheet 📚 8 chapters · 🃏 500 cards Read guide → AI Math (500 Questions) Cheat Sheet 📚 8 chapters · 🃏 500 cards Read guide → AI Math Beginner Cheat Sheet 📚 7 chapters · 🃏 1040 cards Read guide → AI Search Results Cheat Sheet 📚 7 chapters · 🃏 154 cards Read guide → Claude Code Prompts Cheat Sheet 📚 7 chapters · 🃏 100 cards Read guide → LLM Application Design Cheat Sheet 📚 6 chapters · 🃏 100 cards Read guide → LangChain Cheat Sheet 📚 8 chapters · 🃏 166 cards Read guide → Prompt Engineering Cheat Sheet 📚 6 chapters · 🃏 103 cards Read guide →

Certifications 5 guides

AWS Developer Associate (DVA-C02) Cheat Sheet 📚 8 chapters · 🃏 120 cards Read guide → AWS Solutions Architect Associate (SAA-C03) Cheat Sheet 📚 7 chapters · 🃏 110 cards Read guide → CompTIA Security+ (SY0-701) Cheat Sheet 📚 7 chapters · 🃏 120 cards Read guide → PMP Exam: Process Groups & Knowledge Areas Cheat Sheet 📚 7 chapters · 🃏 154 cards Read guide → Scrum Master PSM I Prep Cheat Sheet 📚 7 chapters · 🃏 120 cards Read guide →

Cybersecurity 2 guides

Cybersecurity Fundamentals Cheat Sheet 📚 8 chapters · 🃏 256 cards Read guide → Cybersecurity Fundamentals (200 Cards) Cheat Sheet 📚 7 chapters · 🃏 270 cards Read guide →

Data Science 6 guides

Data Science Essentials Cheat Sheet 📚 8 chapters · 🃏 234 cards Read guide → Pandas DataFrame Operations Cheat Sheet 📚 7 chapters · 🃏 120 cards Read guide → Power Bi Dax Common Patterns Cheat Sheet 📚 6 chapters · 🃏 158 cards Read guide → Probability Distributions for ML Cheat Sheet 📚 8 chapters · 🃏 120 cards Read guide → Python for Data Science Cheat Sheet 📚 7 chapters · 🃏 100 cards Read guide → SQL For Data Analysis Cheat Sheet 📚 7 chapters · 🃏 120 cards Read guide →

Databases 4 guides

PostgreSQL Indexing Strategies Cheat Sheet 📚 7 chapters · 🃏 120 cards Read guide → Postgresql Performance Tuning Cheat Sheet 📚 7 chapters · 🃏 103 cards Read guide → Redis Data Structures & Use Cases Cheat Sheet 📚 7 chapters · 🃏 120 cards Read guide → SQL Window Functions Cheatsheet Cheat Sheet 📚 6 chapters · 🃏 223 cards Read guide →

Devops 4 guides

GitHub Actions CI/CD Recipes Cheat Sheet 📚 7 chapters · 🃏 120 cards Read guide → Kubernetes Core Objects Cheat Sheet Cheat Sheet 📚 8 chapters · 🃏 120 cards Read guide → Linux File Permissions And Chmod Patterns Cheat Sheet 📚 6 chapters · 🃏 66 cards Read guide → Nginx Configuration Essentials Cheat Sheet 📚 8 chapters · 🃏 120 cards Read guide →

Engineering 3 guides

Civil Engineering Essentials Cheat Sheet 📚 7 chapters · 🃏 102 cards Read guide → Electrical Engineering Fundamentals Cheat Sheet 📚 8 chapters · 🃏 100 cards Read guide → Mechanical Engineering Basics Cheat Sheet 📚 7 chapters · 🃏 100 cards Read guide →

Frontend 3 guides

Accessibility ARIA Patterns Cheat Sheet 📚 8 chapters · 🃏 120 cards Read guide → CSS Animations & Transitions Cheat Sheet 📚 7 chapters · 🃏 120 cards Read guide → CSS Grid Vs Flexbox When To Use Which Cheat Sheet 📚 7 chapters · 🃏 202 cards Read guide →

Programming 52 guides

API Testing Cheat Sheet 📚 7 chapters · 🃏 160 cards Read guide → Algorithms Code Cheat Sheet 📚 7 chapters · 🃏 422 cards Read guide → Angular Framework Cheat Sheet 📚 7 chapters · 🃏 170 cards Read guide → Bash Scripting For Automation Cheat Sheet 📚 8 chapters · 🃏 120 cards Read guide → C Programming Cheat Sheet 📚 7 chapters · 🃏 170 cards Read guide → Cicd Pipelines Cheat Sheet 📚 7 chapters · 🃏 170 cards Read guide → Cloud Computing AWS Cheat Sheet 📚 8 chapters · 🃏 170 cards Read guide → Cpp Programming Cheat Sheet 📚 8 chapters · 🃏 170 cards Read guide → Csharp Programming Cheat Sheet 📚 7 chapters · 🃏 170 cards Read guide → Data Engineering Cheat Sheet 📚 8 chapters · 🃏 170 cards Read guide → Design Patterns Cheat Sheet 📚 6 chapters · 🃏 51 cards Read guide → Django Framework Cheat Sheet 📚 8 chapters · 🃏 170 cards Read guide → Docker Compose Recipes For Local Dev Cheat Sheet 📚 8 chapters · 🃏 217 cards Read guide → Docker Containers Cheat Sheet 📚 8 chapters · 🃏 170 cards Read guide → Dsa Anki Deck Cheat Sheet 📚 7 chapters · 🃏 221 cards Read guide → Frontend Performance Cheat Sheet 📚 8 chapters · 🃏 217 cards Read guide → Functional Programming Cheat Sheet 📚 8 chapters · 🃏 170 cards Read guide → Git Recovering From Common Mistakes Cheat Sheet 📚 8 chapters · 🃏 105 cards Read guide → Git Version Control Cheat Sheet 📚 7 chapters · 🃏 51 cards Read guide → Go Programming Cheat Sheet 📚 7 chapters · 🃏 170 cards Read guide → HTML CSS Fundamentals Cheat Sheet 📚 8 chapters · 🃏 170 cards Read guide → Java Programming Cheat Sheet 📚 8 chapters · 🃏 170 cards Read guide → Javascript Fundamentals Cheat Sheet 📚 8 chapters · 🃏 100 cards Read guide → Kotlin Programming Cheat Sheet 📚 7 chapters · 🃏 170 cards Read guide → Kubernetes Orchestration Cheat Sheet 📚 7 chapters · 🃏 169 cards Read guide → Laravel Framework Cheat Sheet 📚 7 chapters · 🃏 170 cards Read guide → Linux Administration Cheat Sheet 📚 8 chapters · 🃏 110 cards Read guide → Machine Learning Programming Cheat Sheet 📚 8 chapters · 🃏 170 cards Read guide → Nextjs Framework Cheat Sheet 📚 8 chapters · 🃏 50 cards Read guide → Nodejs Runtime Cheat Sheet 📚 8 chapters · 🃏 50 cards Read guide → Nosql MongoDB Cheat Sheet 📚 8 chapters · 🃏 50 cards Read guide → Oop Principles Cheat Sheet 📚 8 chapters · 🃏 50 cards Read guide → Php Programming Cheat Sheet 📚 7 chapters · 🃏 50 cards Read guide → Python Deep Dive Cheat Sheet 📚 8 chapters · 🃏 263 cards Read guide → Python Programming Cheat Sheet 📚 7 chapters · 🃏 50 cards Read guide → React Framework Cheat Sheet 📚 6 chapters · 🃏 50 cards Read guide → React Hooks Advanced Patterns Cheat Sheet 📚 7 chapters · 🃏 224 cards Read guide → Regex Patterns Every Developer Should Know Cheat Sheet 📚 8 chapters · 🃏 120 cards Read guide → Rest API Design Cheat Sheet 📚 7 chapters · 🃏 50 cards Read guide → Ruby Programming Cheat Sheet 📚 7 chapters · 🃏 50 cards Read guide → Rust Ownership And Borrowing Explained Cheat Sheet 📚 8 chapters · 🃏 120 cards Read guide → Rust Programming Cheat Sheet 📚 8 chapters · 🃏 50 cards Read guide → SQL And Databases Cheat Sheet 📚 8 chapters · 🃏 50 cards Read guide → SQL Mastery Cheat Sheet 📚 8 chapters · 🃏 239 cards Read guide → Software Security Cheat Sheet 📚 6 chapters · 🃏 50 cards Read guide → Swift Programming Cheat Sheet 📚 7 chapters · 🃏 50 cards Read guide → System Design Cheat Sheet 📚 7 chapters · 🃏 50 cards Read guide → Testing Tdd Cheat Sheet 📚 7 chapters · 🃏 50 cards Read guide → Typescript Essentials Cheat Sheet 📚 8 chapters · 🃏 51 cards Read guide → Typescript Generics Patterns And Constraints Cheat Sheet 📚 7 chapters · 🃏 241 cards Read guide → Vue Framework Cheat Sheet 📚 8 chapters · 🃏 50 cards Read guide → Web Security Cheat Sheet 📚 6 chapters · 🃏 162 cards Read guide →

Technology 13 guides

AWS Cloud Fundamentals Cheat Sheet 📚 8 chapters · 🃏 51 cards Read guide → Anki Playwright Agents Cheat Sheet 📚 8 chapters · 🃏 288 cards Read guide → Assetto Corsa Modding Cards Cheat Sheet 📚 6 chapters · 🃏 2204 cards Read guide → Design Systems Cheat Sheet 📚 7 chapters · 🃏 208 cards Read guide → Docker And Containers Cheat Sheet 📚 7 chapters · 🃏 51 cards Read guide → Information Architecture Cheat Sheet 📚 7 chapters · 🃏 209 cards Read guide → Linux Command Line Cheat Sheet 📚 7 chapters · 🃏 51 cards Read guide → MySQL Optimization Cheat Sheet 📚 8 chapters · 🃏 329 cards Read guide → Sysadmin Cards Cheat Sheet 📚 8 chapters · 🃏 542 cards Read guide → Threed Printing Maker Cheat Sheet 📚 8 chapters · 🃏 200 cards Read guide → Vue Cards Cheat Sheet 📚 6 chapters · 🃏 50 cards Read guide → Web Accessibility Cheat Sheet 📚 8 chapters · 🃏 200 cards Read guide → Wireshark Cards Cheat Sheet 📚 7 chapters · 🃏 728 cards Read guide →

UI/UX 2 guides

Ui UX Flashcards Cheat Sheet 📚 8 chapters · 🃏 834 cards Read guide → User Research Methods Cheat Sheet 📚 7 chapters · 🃏 100 cards Read guide →

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Every cheat sheet links to its companion flashcard deck and a timed practice exam — read, then test yourself.

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