9 languages · runs in your browser · free certifications

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9languages

209topics

1676+lessons

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🐹Beginner-friendly

Concurrency, APIs and systems programming

21 topics262 lessons

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🐍Beginner-friendly

Python

Data, automation and backend development

24 topics213 lessons

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🟨Beginner-friendly

JavaScript

Web, Node.js and full-stack development

22 topics191 lessons

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🗄️Beginner-friendly

SQL

Databases, queries and data analysis

8 topics25 lessons

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Level up

☕Intermediate

Java

Enterprise software and Android development

22 topics144 lessons

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💜Intermediate

.NET, game dev and desktop applications

36 topics255 lessons

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🔷Intermediate

TypeScript

Typed JavaScript for large-scale apps

17 topics214 lessons

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Master level

⚙️Advanced

C++

Performance-critical and embedded systems

22 topics137 lessons

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🦀Advanced

Rust

Memory safety, performance and systems

37 topics235 lessons

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Not sure where to start?

Go and Python are the most beginner-friendly picks. You can switch languages any time.

Start with Go →Start with Python →