cocoon. All free tools
BUILD LAB
1Describe 2PRD 3Build 4Explore
Cocoon AI · free
FREE · NO CODE · WATCH IT GET BUILT

What do you want to build?

Describe a website in plain words. Watch it get built, step by step, with every line of code explained as it's written.

Pick a model
These models cost real money per build, so we send a one-time code to your email.
Try one:
A real plan firstIt writes a PRD, the document a product team writes before any code, and you can edit it.
Built in front of youStructure, styles, interactions, review. Each step explained as it happens, and you decide when to move on.
Every line explainedClick any part of the finished site to see and understand the code behind it.
The live Cocoon APIWire real data into your site: 2,000+ AI tools, the jobs board, daily AI news. Then meet MCP, the same plug an AI assistant uses to reach it.
STEP 2 · THE PLAN BEFORE THE CODE

Your PRD.

This is the document a product team would write before a single line of code. Everything below is editable, fix anything the AI got wrong. The build follows this, not your original message.

Palette & type
+
CYour developer

Why this matters: every section below exists for a reason tied to your goal. When a section has no purpose, a professional deletes it. Try removing one and see how the build changes.
1Structure, the HTML
2Styles, the CSS
3Interactions, the JS
4Review & polish
Advanced

10 changes left this build

Give your site living data, and see how an AI assistant reaches the same data.

// the code will appear here, line by line, as it's written
What's happening
Lines with a green number carry a note, click them.
your-site.html
The live preview appears here after the first phase.
It re-renders after every step, like a real dev server.