CodeHandbook
New: Structured Handbook Available

Master Coding through
Gamified Practice

The perfect blend of guided learning and interactive quizzes. Read the handbook to learn, then take the quizzes to test your mastery.

Complete Courses
9
Practice Questions
800+
Handbook Lessons
240+
Subscriptions
Zero

Two Ways to Master Code

We believe in a balanced approach. Theory gives you the foundation, practice builds the muscle memory.

Structured Handbook

Dive into our comprehensive guides. From "Hello World" to advanced architecture, we explain the why behind the code.

Start Reading

Interactive Quizzes

Test your knowledge with rapid-fire questions. Identify gaps, reinforce learning, and track your progress with XP.

Start Practicing
Try it yourself

Try it Out

No more passive reading. CodeHandbook forces you to think. Try this practice quiz question to see how it works.

Real-world questions
Instant feedback with detailed explanations
Syntax highlighting for code snippets
Question

What is the output of `typeof null` in JavaScript?

console.log(typeof null);

Incorrect

In JavaScript, typeof null returns 'object'. This is a long-standing bug in the language that has been kept for compatibility.

Comprehensive Curriculum

From absolute basics to advanced patterns, we cover the modern web stack.

HTML Foundations

Learn the foundation of every website with HTML - the markup language that structures all web content

CSS Foundations

Master styles and layouts—from syntax to responsive design

JavaScript Foundations

Master the fundamentals of JavaScript programming

TypeScript Foundations

Master static typing to write safer, more maintainable JavaScript

Premium

React Foundations

Master component-based UI development with React

Premium

CSS Advanced

Master modern CSS—selectors, container queries, animations, and architecture

Premium

React Advanced

Master advanced patterns, hooks, and professional workflows

Premium

JavaScript Advanced

Master the inner workings of JavaScript: async patterns, functional programming, OOP, and modern tooling

Premium

TypeScript Advanced

Master static typing to write safer, more maintainable JavaScript

Premium
Gamified Learning

Level Up Your Skills

Earn XP

Get rewarded for every correct answer and milestone.

Climb Ranks

Go from Script Kiddie to 10x Engineer as you learn.

Daily Streaks

Build a habit by practicing a little bit every day.

See how to level up
Pro Releasing Soon

Simple, Transparent Pricing

Start for free, upgrade for the career-changing advanced content.

Free Starter

Perfect for beginners just starting out.

$0/forever
  • Foundation Courses (HTML, CSS, JS)
  • 300+ Practice Questions
  • Daily Streaks & Progress Tracking
  • TypeScript & React Courses (+ Advanced)
  • 800+ Practice Questions

Lifetime Pro

Unlock all learning paths

$99/one-time
Pro
  • Everything in Free, plus:
  • TypeScript & React Foundation Handbook Courses
  • Advanced Handbook Courses
  • 800+ Practice Questions

Frequently Asked Questions

Everything you need to know about CodeHandbook.

Is CodeHandbook free?

Yes! You can access core 'Foundations' content (HTML, CSS, JS) completely for free. We only charge for premium courses.

Is this suitable for absolute beginners?

Absolutely. We have dedicated 'Foundations' tracks designed specifically for people who have never written a line of code before.

Do I need to install anything?

No. CodeHandbook runs entirely in your browser. You can practice from your phone, tablet, or computer anywhere, anytime.

What if I get stuck?

Every question comes with a detailed explanation. We don't just tell you the answer; we explain *why* it's the answer so you actually learn.

Ready to start your journey?

Join other developers who are leveling up their skills one quiz at a time.

No credit card required for free plan.