What is BaseCodeByte?

Programming education should be accessible to everyone. No paywalls, no accounts, no barriers. We believe the best way to learn code is by running it — changing a variable, breaking something, and seeing what happens.

We built BaseCodeByte because existing resources either cost money, require complex setup, or are buried behind account walls. We wanted a place where you could open a browser, pick a language, and start learning in under ten seconds.

The C++ notebook runs directly in your browser using JSCPP — an open-source C++ interpreter written in JavaScript. No code is ever sent to a server. Everything executes locally on your machine, instantly.

For all other languages, every lesson page includes a structured curriculum with real code examples that you can study, copy, and use as starting points. Lesson pages are organised into sections and tracks, matching the structure you'd find in a university course or official documentation.

We're actively expanding live, runnable notebooks for Python, JavaScript, TypeScript, and more.

We cover 12 languages, each with a full structured lesson path:

Each course is divided into sections and lessons. Every lesson has a title, a short explanation, and a real code example. Lessons are designed to be short — ten to fifteen minutes each — so you can make progress even in a busy schedule.

The C++ notebook goes further: every lesson is interactive. You read the explanation, edit the code, click Run, and see the output immediately. You can change values, break things, and fix them — all without leaving the page.

We don't require accounts. We don't track individual users. Your code runs locally in your browser — it is never transmitted to our servers.

We collect anonymous page view counts to understand which lessons are popular. That's it. Read our Privacy Policy for the full details.

BaseCodeByte is completely free. There is no Pro plan, no subscription, and no account required. Every lesson, every code example, every guide — all free, forever.

To support ongoing development, we display advertising. All educational content will always remain free to access. No lesson is ever locked behind a payment.