Web Foundations
Build beautiful, responsive websites with HTML, CSS, JavaScript, and the habits of professional developers.
24 lessons · 4 projects→
Skills for the real worldLearn code.
Learn code.
Build things
that matter.
A practical place to learn programming through bite-sized lessons, guided projects, and feedback that helps you move forward.
👩🏻🧑🏽👨🏿👩🏼
★★★★★
Loved by 12,000+ learners
Loved by 12,000+ learners
Zero to
builder
↗
builder
↗
first-project.js
const learner = {
name: "You",
curiosity: true,
skills: []
};
function buildSomething(idea) {
learner.skills.push("confidence");
return idea + " → reality";
}
// Your journey starts here.
buildSomething("a great idea");
✓Lesson complete
Keep the momentum!
Keep the momentum!
⚡7 day streak
Learners now work atGooglenotionSpotifyvercel▲
Choose your directionPaths made for
Paths made for
where you want to go.
No endless playlists. Each path combines the exact concepts, practice, and portfolio projects you need to make real progress.
Frontend Developer
Go from JavaScript fundamentals to modern React applications, APIs, testing, and confident deployment.
38 lessons · 6 projects→
Python & Data
Learn Python by solving useful problems, automating daily tasks, and turning raw data into clear insight.
30 lessons · 5 projects→
A better way to learnLess watching.
Less watching.
More making.
Programming only clicks when your hands are on the keyboard. Every lesson moves quickly from a clear explanation to a meaningful challenge.
$ codeleaf start today
✓ Workspace ready. Let's build.
✓ Workspace ready. Let's build.
01
Learn the idea
Short, visual explanations give you the mental model without burying you in theory.
02
Practice in the browser
Write real code immediately with smart hints when you need a gentle nudge.
03
Ship a real project
Turn each new skill into something you can customize, publish, and proudly share.
04
Get human feedback
Detailed reviews show what is working and what to improve on your next build.
Portfolio, includedDon't just finish lessons.
Don't just finish lessons.
Finish projects.
Build work that proves what you know—from focused mini apps to polished capstone projects.
Design and build a personal dashboard
Work with components, live APIs, responsive layouts, and saved user preferences.
Turn messy data into a clear story
Clean a real dataset and uncover the signal hidden inside.
Learner story
“I stopped collecting tutorials and finally started building. Three months later, I had a portfolio I was genuinely excited to show.”
👨🏽💻Samir A.Frontend developer
Questions, answered
Good to know.
Still curious? These are the things new learners ask us most.
Not at all. Our foundation paths start from the very beginning and explain every new concept in plain language.
Most learners make steady progress with 30–45 minutes a day, four or five days each week.
Yes. Lessons, challenges, and projects stay available so you can build a routine that fits your life.
Yes. Every path includes guided projects designed to be customized, published, and shared with employers.