<?php

echo "Hello!";

$x = 42;

def hello

print("Hi")

for ($i=0;...)

Free

Programming Courses

Free interactive courses — learn to code right in your browser

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12 courses

475 lessons

287 exercises

11 languages

PHP Basics

Learn PHP from scratch: variables, conditionals, loops, arrays and functions. Write and run code right in your browse...

20 lessons ~12 h 1415 XP

JavaScript

Complete JavaScript course: from variables and functions to async/await, DOM manipulation and real projects.

54 lessons ~60 h 4870 XP

HTML & CSS from Scratch

Complete web layout course: from your first tag to Flexbox, Grid and animations. Write code and see results instantly...

45 lessons ~20 h 2230 XP

Python

Complete Python course: from variables and loops to OOP, decorators, generators and real projects. The most popular l...

34 lessons ~60 h 4220 XP

SCSS & CSS Frameworks

Preprocessors, methodologies, Bootstrap and Tailwind CSS. From variables and mixins to production-ready layouts with ...

47 lessons ~50 h 4070 XP

TypeScript

Complete TypeScript course: from basic types to generics, utility types, decorators and real patterns. Strict typing ...

44 lessons ~50 h 4140 XP

Git

Complete Git course: from first commit to rebase, cherry-pick, hooks and teamwork. Learn to manage code like a pro.

35 lessons ~35 h 3050 XP

SQL

Complete SQL course: from SELECT and JOIN to window functions, query optimization and database design. Working with P...

34 lessons ~45 h 3435 XP

Go

Complete Go course: from variables and functions to goroutines, channels, interfaces and web servers. Google's langua...

44 lessons ~50 h 3900 XP

Java

Complete Java course: from variables and OOP to collections, streams, generics and real projects. One of the most in-...

42 lessons ~55 h 3830 XP

DevOps

Extended DevOps course: Linux, networking, Bash, Docker, Docker Compose, CI/CD, Nginx, Kubernetes, Terraform, Ansible...

42 lessons ~60 h 4180 XP

Programming Fundamentals

Universal course: data types, conditionals, loops, functions, OOP, SOLID, data structures, algorithms and design patt...

34 lessons ~45 h 3815 XP

Why learn here

Completely free

No subscriptions or hidden fees. All courses, exercises, and certificates — free, forever.

Interactive code

Write and run code right in your browser. Monaco Editor — the same editor as VS Code.

Real compiler

Code runs on a real server. Support for PHP, Python, JavaScript, Ruby, Go and more.

Certificates

Complete a course and get a certificate with a unique ID you can share.

Gamification

XP for every exercise, levels, streaks and badges. Learning becomes a game.

Mobile-friendly

Learn from your phone, tablet, or desktop — the interface adapts to any screen.

Achievements

Earn badges as you progress — from your first exercise to a graduation certificate

First Course

Complete your first course

Multi-Learner

Complete 3 courses

Polyglot

Complete 5 courses

Master of All

Complete 10 courses

First Solve

Solve your first exercise

Problem Solver

Solve 10 exercises

FAQ

Are the courses really free?

Yes, all courses are completely free. No subscriptions, hidden fees, or paid content. All lessons, exercises, and certificates are available for free.

What programming languages can I learn?

PHP courses are available now, with Python, JavaScript, Ruby, Go and more coming soon. Code runs on a real server right in your browser.

Do I need programming experience?

No, courses are designed for beginners. We start from the basics — variables to functions — with step-by-step explanations and interactive exercises.

How do I get a certificate?

Complete all lessons and exercises in a course, and you'll automatically receive a certificate with a unique ID that you can share on social media.