Programming · Learn to code

Learn programming languages step by step

Structured tracks from beginner to advanced — clear explanations, runnable code you can copy, key points and a hands-on exercise in every lesson.

5Live tracks
3Levels per language
130Lessons
Beginner

No experience needed. Set up your tools and learn the fundamentals every program is built from.

Intermediate

Model real data, write async code, handle errors, build an HTTP API and test it.

Advanced

Master the type system, performance, architecture and shipping services to production.

Languages

Choose a language

TypeScript (Node.js), Python, PostgreSQL, JavaScript and Java — each from beginner to advanced.

TSAvailable

TypeScript

Node.js

Typed JavaScript for servers, APIs and tools.

  • Beginner · 7 lessons
  • Intermediate · 9 lessons
  • Advanced · 10 lessons
Start learning →
PYAvailable

Python

Python 3.11+

Readable code for automation, data, web APIs and AI.

  • Beginner · 8 lessons
  • Intermediate · 9 lessons
  • Advanced · 9 lessons
Start learning →
PGAvailable

PostgreSQL

PostgreSQL 16+

Design, query and run relational databases with SQL.

  • Beginner · 7 lessons
  • Intermediate · 10 lessons
  • Advanced · 9 lessons
Start learning →
JSAvailable

JavaScript

Browser

The language of the web — interactive pages and apps.

  • Beginner · 7 lessons
  • Intermediate · 10 lessons
  • Advanced · 9 lessons
Start learning →
JAVAAvailable

Java

Java 21+

Object-oriented programming for enterprise systems, Android and the JVM.

  • Beginner · 8 lessons
  • Intermediate · 9 lessons
  • Advanced · 9 lessons
Start learning →
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