Learn to code with free interactive courses
Pick a programming language and start writing real code in your browser. Hands-on lessons, AI-assisted hints, and a free certificate at the end — no install, no signup wall.
Browse all programming languages
Pick a language to start a free, interactive course. Each one has hands-on lessons, AI hints, and a free certificate when you finish.
How it works
Three steps from your first line of code to a certificate you can show off.
- 01
Pick a language
Choose any of our supported programming languages — Python, JavaScript, Java, C++, SQL, and more. No card, no signup wall.
- 02
Learn by writing real code
Every lesson runs in your browser. Type real code, hit run, and see the output. AI hints help when you get stuck.
- 03
Earn a free certificate
Finish the course to unlock a verifiable certificate with a unique ID. Share it on LinkedIn, your CV, or your portfolio.