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Docker Generator

Generate a Dockerfile or a Compose service snippet from image, ports, and command fields. Snippets are built in the tab.

Runs in your browser. Nothing is uploaded.Ctrl+Enter to process

File

ImageWorkdirCOPYRUNEXPOSECMD

FROM node:22-alpine
WORKDIR /app
COPY . .
RUN npm ci
EXPOSE 3000
CMD ["node", "server.js"]

About this tool

Generate a Dockerfile or Compose service from image, workdir, ports, and command.

How to use: pick Dockerfile or Compose, fill fields, copy. This does not build or push images.

Example: node:22-alpine plus EXPOSE 3000 yields a small Node Dockerfile. Related: GitHub Actions explainer for CI YAML.

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