CodeCrafters
Your all-in-one coding academy

One place to learn all things code.

Explore popular programming languages and the computer science ideas behind them. Start with the language you like, build strong foundations, and keep growing.

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For curious beginners and lifelong learners.

codecrafters / examples / hello
One idea, different languages
#include <stdio.h>

int main(void) {
    printf("Hello, world!\n");
    return 0;
}
One academy. Many ways to create.
Many languagesChoose your path
Core conceptsUnderstand how computing works
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A topic picked for you

Explore a computer science idea in a quick, focused lesson.

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Technology news

Read dated, sourced updates on technology and computing.

History of computers

Explore the people, machines, and ideas behind modern computing.

A simple learning roadmap

Not sure where to start? Try this.

You do not need to learn everything at once. Follow a small path, then branch out when a topic catches your interest.

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Begin with a language

New to programming? Start with a complete C, C++, or Python course. Other language paths have chapter-by-chapter outlines to help you plan what to learn next.

Start the C guide
Build the foundations

Practice problem solving

Learn to break a challenge into smaller steps, make a plan, and check your answer before you code.

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Connect the ideas

Explore computer science

Follow your curiosity into algorithms, data structures, networks, and other ideas behind software.

Browse CS concepts

Already know what you want to learn? Browse all language paths or search the concepts.

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Which language interests you?

Pick a language to explore its course. Start C now, or open a starter page for another learning path.

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Beyond the syntax

Computer science, made approachable.

Great programmers learn more than a language. Explore the ideas that help you solve problems and build better software.

Showing 8 featured concepts. Use View more to explore the full collection.

Problem solving

Break a challenge into smaller steps and design a clear solution.

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Data structures

Choose useful ways to organize, store, and access information.

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Algorithms

Learn repeatable methods for searching, sorting, and more.

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How computers work

Discover memory, operating systems, networks, and architecture.

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Operating systems

Explore processes, memory, files, and how software shares hardware.

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Computer networks

Learn how devices address, route, and exchange information.

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Databases

Model information and query it reliably as applications grow.

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Cybersecurity

Understand core security ideas and build safer software habits.

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Software engineering

Design, test, deliver, and maintain software with a team.

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Distributed systems

Understand the challenges of coordinating computers over networks.

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Programming languages

Explore how languages express ideas and how compilers run programs.

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AI and machine learning

Learn how models find patterns, make predictions, and need evaluation.

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Cloud computing

Explore on-demand computing, cloud services, deployment, and cost.

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Data science

Turn data into useful evidence with analysis, visualization, and care.

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Computer graphics

Discover how computers create, transform, and display images.

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Human-computer interaction

Design usable, accessible experiences around people's needs.

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Web development

Learn how browsers, HTML, CSS, JavaScript, and servers build the web.

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Parallel computing

Explore concurrency, parallel work, speedup, and coordination.

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Information theory

Understand information, uncertainty, compression, and communication.

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Formal methods

Use logic, specifications, and proofs to reason about programs.

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Computer architecture

Explore instruction sets, processors, caches, and the memory hierarchy.

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Robotics

Learn how robots sense, plan, and act in the physical world.

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Computer vision

Discover how computers process and interpret images and video.

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Numerical computing

Understand floating-point numbers, error, and scientific computation.

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Quantum computing

Explore qubits, quantum algorithms, hardware limits, and realistic applications.

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Internet of Things

Learn how connected devices sense, communicate, and act in the physical world.

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Edge computing

Understand why data is processed near devices, users, and machines.

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Extended reality

Discover the technology and design behind virtual, augmented, and mixed reality.

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About CodeCrafters

Learn how to think, not just what to type.

CodeCrafters is a growing, self-guided learning hub for programming and computer science. It brings language courses and foundational concepts together so learners can build practical skills and understand the ideas behind their code.

Lessons are designed to make complex topics approachable with clear explanations, worked examples, and room to practice at your own pace. Start wherever you are curious, then follow that curiosity into the next idea.

A learning path built around you

Start with the fundamentals

Build confidence with core programming ideas and computer science concepts.

Learn by exploring

Move between languages, examples, and topics as your interests grow.

Go at your own pace

Come back to a lesson, practice a concept, and keep building step by step.