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HTML
Structure the web with semantic markup
30 lessons · 12 projects
4 languages · 120+ lessons · 100% free
Learn to code by
actually writing it.
CideStudio turns the browser into your workshop. Type real code, see it run live, and ship projects you'll be proud of.
Four languages.
One workspace.
From your first <h1> to your first Python script.
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CSS
Style everything from layout to motion
30 lessons · 12 projects
JS
JavaScript
Bring pages to life with logic
30 lessons · 12 projects
Py
Python
Automate, analyze, and build anything
30 lessons · 12 projects
Your live code editor
Write HTML, CSS, and JavaScript. See the result render in real time.
playground.html
Preview● live
Edit the H1, click the button in the preview, or in the JS tab try:
document.body.style.background = 'tomato'Live Editor
Write code, see results instantly. No setup, no installs.
Bite-sized Lessons
Learn one concept at a time with hands-on practice.
Real Projects
Build games, sites, and tools you actually want to show off.
Track Progress
Earn XP, unlock badges, and level up your skills.
Ready to write your first line?
Join thousands of learners building the web, one line of code at a time.
Start coding — it's free