Codelab

Codelab is an online code sandbox for experimenting with HTML, CSS, and JavaScript in one place, with built-in AI Prompt assistance.

Browser-based HTML, CSS, and JavaScript editor

Codelab lets you write and run code directly in the browser without installing extra tools. Separate panels for HTML, CSS, and JavaScript help keep projects organized while you see results immediately.

• Build quick prototypes and UI experiments
• Learn front-end basics with instant feedback
• Test small ideas and code snippets fast

AI Prompt assistance

The built-in AI Prompt helps you phrase tasks, suggests code fragments, and offers implementation options. You can save your prompts and experiments, return to them later, and refine your solutions over time.

Who it’s for

Codelab is useful for beginners, students, and anyone who wants to quickly validate a front-end idea in the browser by combining a simple online editor with AI guidance.