v1.4.0 — Now available for Windows & Linux

Code with an
AI that acts

Codex is a sleek, distraction-free code editor with a built-in AI that doesn't just suggest — it creates files, builds folder structures, and modifies your workspace on command.

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Codex — ~/project/src/App.jsx

1// AI created this file ✦

2import React from 'react'

3import { Button } from './components/Button'

5export default function App() {

6 const [count, setCount] = useState(0)

8 return (

9 <div className="app">

10 <Button onClick={() => setCount(count + 1)}>

11 Clicked {count} times

12 </Button>

13 </div>

14 )

15}

✦ AI Assistant

Create a Button component with hover styles

Creating components/Button.jsx with CSS transitions and variant props…

✓ Applied 1 operation

Ask AI anything…

About

Built different.
Thinks ahead.

Codex was born from frustration with AI tools that only talk — they explain what code you should write, but make you do all the actual work. Codex's AI doesn't just answer questions. It takes action.

Open a workspace, describe what you want, and the AI will write the code, create the files, build the folder structure, and open everything ready for you to review — all in one shot.

Under the hood, Codex runs on Puter.js, giving you access to every major AI model in one place — GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, Llama 3, Mistral, and more — with no API keys, no subscriptions, no setup.

✦

AI that creates, not just suggests

Tell the AI to build a component, scaffold a project, or restructure your codebase — it writes the files directly to disk. (may not work properly)

⚡

Every major model, one interface

Switch between GPT-4o, Claude, Gemini, Llama, and Mistral from the same chat panel. No API keys needed.

🎨

Syntax highlighting for everything

JavaScript, TypeScript, Python, HTML, CSS, JSON, Markdown, Shell — CodeMirror powered, with a handcrafted dark theme.

🤜🤛

Collab mode for faster developing

Right click a folder, click open collab session and boom, give your generated link to your friend/coworker and start deving on the go!