About

Docker Tools

Dockerfile Generator

Create a Dockerfile online for common web development languages and frameworks.

Features

  • Common runtime templates
  • Editable Dockerfile output
  • Copy-ready commands

How to use it

  1. Choose the project runtime or framework.
  2. Review the generated Dockerfile.
  3. Copy it into your project and adjust build details.

Example and use cases

Generate a starting Dockerfile for a Node.js web application before adding project-specific commands.

Useful for learning container basics and creating a starting point for local development images.

Docker Tools

Dockerfile Generator

Generate production-ready Dockerfiles for popular programming languages and frameworks directly in your browser.

Docker Configuration

Configure your application before generating the Dockerfile.

Build Options

One variable per line. Example: NODE_ENV=production

01

Select stack

Choose your programming language, framework and runtime version.

02

Configure

Set package manager, port, environment variables and build options.

03

Generate

The generator creates the Dockerfile directly in your browser.

04

Download

Copy the generated file or download Dockerfile and .dockerignore.

Example

Next.js Production Dockerfile

FROM node:22-alpine AS builder

WORKDIR /app

COPY package*.json ./
RUN npm ci

COPY . .
RUN npm run build

FROM node:22-alpine

WORKDIR /app

ENV NODE_ENV=production
ENV PORT=3000

COPY package*.json ./
RUN npm ci --omit=dev

COPY --from=builder /app/.next ./.next
COPY --from=builder /app/public ./public

EXPOSE 3000

CMD ["npm", "start"]

FAQ

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Docker Command Generator

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Dockerignore Generator

Generate optimized .dockerignore files for your project.

Frequently asked questions

Can a generated Dockerfile be used unchanged in production?

Treat it as a starting point and review dependencies, ports, users, secrets, and build optimization for your project.

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