Editor
Syntax highlighting, autocomplete, and snippets for HTML, CSS, and JavaScript — tuned for speed, not ceremony.
browser-based IDE
Code • Studio
Your code, refracted into something real — in the same tab, the same instant.
001 — what it is
One tab holds the editor and the result.
No build step stands between them.
CodeStudio is a complete IDE that runs entirely in your browser. Write HTML, CSS, and JavaScript on one side; watch it render, live, on the other. Nothing installs. Nothing waits. Close the tab and it's gone — open it again and it's exactly as you left it.
Whether you're a student writing your first webpage, a designer prototyping an idea, or a professional needing a quick sandbox, CodeStudio removes every obstacle between you and working code. No terminal. No npm install. No configuration files. Just a tab, your ideas, and a live result updating as you type.
002 — what's inside
Live preview
A render pane that updates as you type. No save, no refresh, nothing standing between you and the result.
AI assistance
Built in for when you're stuck, debugging, or want a second pair of eyes on the logic. Powered by Gemini.
Collaboration
Share a link, code in the same file in real time, see each other's cursors move. No account required to start.
Export
Pull your project out as real files whenever you're ready to ship it somewhere else. Download as a ZIP instantly.
Storage
Work persists in the browser, and optionally syncs to an account if you want it reachable anywhere.
003 — why it exists
The best tools disappear.
CodeStudio tries to disappear.
Most online editors make you think about the editor. CodeStudio is designed to make you think about the code. The interface steps aside: the editor takes half the screen, the live result takes the other half, and nothing else competes for your attention.
It's free because learning shouldn't cost anything. It's browser-based because installing software is a barrier. It's fast because waiting is a barrier. Every decision in CodeStudio is made to remove one more reason not to write something.
004 — who it's for
Students
Learn HTML, CSS, and JavaScript without any setup. Open a tab in class, start typing, and see your code come to life immediately.
Designers
Prototype interactions and layouts in the browser where they actually live. No handoff friction — the code is the design.
Developers
Spin up a quick sandbox to test an idea, debug a CSS quirk, or share a reproducible snippet with a colleague — instantly.
Open a tab.
Start building.
Enter the studio
↗
Free. No account needed to start.