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Dockerfile Generator

Pick a base image (Node, Python, Go, etc.) and your entrypoint — get a multi-stage, production-friendly Dockerfile instantly.

Language

PortStart command

Dockerfile

# ----------- Stage 1: dependencies -----------
FROM node:20-alpine AS deps
WORKDIR /app
COPY package.json* ./
RUN npm ci
COPY . .

# ----------- Stage 2: build -----------
FROM node:20-alpine AS build
WORKDIR /app
COPY --from=deps /app .
RUN npm run build

# ----------- Stage 3: runtime -----------
FROM node:20-alpine AS runtime
WORKDIR /app
ENV NODE_ENV=production
COPY --from=build /app/build ./build
COPY --from=deps  /app/node_modules ./node_modules
COPY --from=deps  /app/package.json ./
USER node
EXPOSE 3000
CMD npm start

How to use Dockerfile Generator

1Paste your input in the panel above or use the example data if available.
2Choose an action — format, generate, convert, encode, or analyze.
3Your result appears instantly. Use Copy to grab it, or Download if a file option is shown.

Runs entirely in your browser

Nothing you type, paste, generate, or upload leaves your device.

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