ChatGPT To Codex

Give ChatGPT real local coding hands.

ChatGPT To Codex is a local MCP and Actions runtime for macOS and Windows that lets ChatGPT work inside the project folder you choose: read files, search code, apply patches, run tests, launch E2E checks, and send back screenshot proof.

Your source stays on your machine. ChatGPT connects to the local app you run. You choose the workspace, approve the token, and keep control of what gets edited.

Download v0.1.2 · Beginner installation guide

Help us get this in front of more builders: star the repo if you want ChatGPT to stop talking about code and start safely doing the repo loop.

Why It Exists

ChatGPT is great at reasoning, but web chat alone cannot reliably inspect your local repo, run your local tests, or prove what the UI actually looked like. ChatGPT To Codex fills that gap:

• local project selection instead of uploading a source tree

• guarded file reads and hash-checked patching

• allowlisted local commands for tests and checks

• macOS/Windows app, window, and browser screenshot capture for visual E2E proof

• temporary or fixed HTTPS connector URL for ChatGPT web

• OAuth-style owner-token approval so random clients cannot just attach

• multilingual menu bar app for non-English users

The mental model is simple:

ChatGPT thinks. Your computer acts. You review the result.

Related MCP server: codex-web-bridge

Current Release

Why PKG Instead Of DMG?

For this release, PKG is the better fit. A DMG is nicer for drag-and-drop apps, but this app needs to install a menu bar runtime under Applications, bundle Node/cloudflared helpers, and run a non-blocking post-install Doctor. PKG gives beginners a clearer "install and open" path. A signed/notarized DMG can still be added later for a more consumer-style download.

Current macOS package SHA-256:

d9226ba10d9a24a121a0ec6c7a6c79f81d55b3bb60ddc5acd13240c2d17f7821  chatgpt2codex-0.1.2.pkg

What ChatGPT Can Do With It

Once connected, ChatGPT can operate like a practical coding agent over a trusted project:

• list local projects and select the active one

• read repo rules before editing

• search code and read exact line slices

• create files and apply patches

• run project commands and tests

• start a dev server and wait for a URL

• open a browser URL or installed desktop app

• capture macOS/Windows E2E screenshots

• return inline screenshot previews through Actions

• save generated image assets into the repo

• summarize diffs, blockers, and verification evidence

The standout workflow is:

Run the E2E test, open the app, capture screenshots, and show me proof.

For web apps, ChatGPT To Codex can capture browser regions. For desktop apps such as Tauri apps, it can open the built app window and capture top/middle/bottom views. The one-shot e2e_test_and_show_screenshot action returns inline imageMarkdown results so you can inspect the screen without digging through local folders.

Install In 5 Minutes

Full beginner guide: docs/INSTALL.md

macOS short version:

1. Download chatgpt2codex-0.1.2.pkg from the latest release.

2. Open the installer.

3. If macOS blocks the unsigned package, Control-click it, choose Open, and confirm in System Settings -> Privacy & Security if needed.

4. Open ChatGPT To Codex from Applications.

5. Open Settings... from the menu bar icon.

6. Choose a project folder.

7. Enable ChatGPT web connector if you want ChatGPT in the browser to connect.

8. Click Start MCP.

9. Click Copy Connector URL.

10. Register that /mcp URL in ChatGPT Apps / Connectors and approve with the Owner Token shown by the app.

Windows short version:

1. Download chatgpt2codex-0.1.2-windows-setup.exe from the latest release.

2. Double-click the installer.

3. If Windows SmartScreen warns, choose More info -> Run anyway only if the file came from this GitHub release.

4. Launch ChatGPT To Codex.

5. Open the tray icon settings, choose your project folder, enable the ChatGPT web connector if needed, then click Start MCP.

6. Copy the /mcp Connector URL and approve it in ChatGPT with the Owner Token.

Keep the Owner Token private. Treat it like a password.

First Prompt To Try

Use ChatGPT To Codex. Select my project, read the README and package scripts,
run the safest available check, then summarize the result with exact evidence.

Then try a visual proof flow:

Use ChatGPT To Codex to run the app E2E, capture screenshots, and show the
passing screenshot set inline before you say it is done.

Safety Model

ChatGPT To Codex is designed for trusted local development, not arbitrary public automation.

• It runs locally on your computer.

• It defaults to loopback-only networking.

• ChatGPT web requires an explicit connector/tunnel mode.

• File operations are scoped to the selected project.

• Patch application uses line/hash context.

• Owner Token approval is required for remote Actions access.

• Secret-looking values are redacted from tool output.

• Destructive, network, and sensitive operations remain approval-gated.

Do not expose the connector URL publicly unless you understand the tunnel and token model. Do not paste Owner Tokens into issues, screenshots, or shared logs.

Supported Languages

The desktop app can follow the system language and currently includes UI strings for English, Korean, Japanese, Simplified Chinese, Traditional Chinese, Spanish, French, German, Brazilian Portuguese, Italian, Dutch, Polish, Russian, Turkish, Vietnamese, Indonesian, Thai, Arabic, Hindi, and Ukrainian.

The install guide currently includes Korean, English, Japanese, and Simplified Chinese. More documentation languages are welcome.

Windows Status

Windows now has a public beginner installer. It includes the tray launcher, owner-token setup flow, ChatGPT web connector settings, stale runtime cleanup, and Windows E2E screenshot proof. See docs/INSTALL.md and windows/README.md for the full Windows guide.

Repository Contents

This public repository is intended to contain only the product source, public documentation, assets, scripts, and published installer artifacts. Local agent state, personal automation rules, generated memory, hooks, private MCP config, build output, and machine-local logs are ignored.

If you see local-only files in a clone, they came from your machine, not from the public repo.

Build From Source

For developers:

npm ci
npm run typecheck
npm test
npm run build

Build the macOS package:

npm run macos:package

The packaging script creates a .pkg under build/macos/. Published packages are copied to installers/macos/.

Star Pitch

If this saves you one "copy this patch, paste it in terminal, now run tests, now send me a screenshot" loop, give it a star. The goal is simple: make ChatGPT useful for real local development without turning your project into a cloud upload.

Built by ezBuilder.