A free ChatGPT-web multi-agent app builds full projects with no API keys
soufiane-io · reddit · 2026-07-27
A free multi-agent app that builds whole projects from a ChatGPT account
A Reddit user says they built an app that drives the normal ChatGPT web UI to create full projects — web apps, CLIs, and Python scripts — with no API keys and no paid API usage.
How it works
- It opens four ChatGPT tabs and assigns each one a role
- One tab plans the next file
- One writes code
- One reviews and replies with PRINT or RETRY
- One runs installs, boots the app, takes screenshots, and judges the result
What it can do
- Scaffold projects in modes like Next.js, Vite, static sites, Node CLIs, and Python
- Write files to disk, install dependencies, start servers, and fix runtime errors
- Keep everything in temporary chats so the user’s normal history stays clean
The author also claims it produced a pure-CSS lava lamp app in a 22KB file, built a Hill Climb Racing clone, and generated a JSON-to-CSV CLI with nested-key support. They ask whether to open source it.
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