Tick the services your app needs — web, database, redis, nginx — and the tool assembles a docker-compose.yml wiring them together with sensible ports and volumes.
Yes. The output is plain YAML — open it and adjust port mappings, volume paths, or environment variables to match your local setup.
It is a solid, secure-by-default starting point — review ports, paths, and credentials for your actual server before deploying.
No. Everything is generated client-side in your browser; nothing is uploaded to any server.