Dockerfile Generator

A free, open-source online tool for generating production-ready Dockerfiles and Docker Compose files. Pick your stack, configure options, and get optimized Docker configurations in seconds.

Live Demo · Report Bug · Request Feature

Features

• 23+ Framework Support — Node.js, Express, NestJS, Next.js, React, Vue, Python, Django, FastAPI, Flask, Java, Spring Boot, Quarkus, Go, Rust, Actix, PHP, Laravel, Ruby on Rails, .NET, Phoenix, Gin
• Multi-Stage Builds — Smaller final images with build dependencies isolated to a builder stage
• Best Practice Scanner — Built-in auditor that flags security and performance issues (running as root, missing health checks, oversized base images)
• Docker Compose Generator — Visual multi-service orchestration with PostgreSQL, MySQL, MongoDB, Redis, Nginx, and more
• Stack Builder — Full-stack configuration with databases, caches, and reverse proxies
• Framework-Specific Optimizations — Spring Boot layered JARs, Next.js standalone output, FastAPI uvicorn tuning
• Inline Explanations — Every instruction explained in plain English as you generate
• Export Options — Download Dockerfile, .dockerignore, .env.example, or full zip package
• Client-Side Generation — No data leaves your browser; complete privacy
• Free, No Signup — Open source with no authentication required

Tech Stack

• Astro — Static site generator and web framework
• TypeScript — Type-safe JavaScript
• Tailwind CSS v4 — Utility-first CSS framework
• Cloudflare Pages — Deployment and hosting

Getting Started

Prerequisites

• Node.js >= 22.12.0
• npm

Installation

git clone https://github.com/SuperSection/dockerfilegenerator.com.git
cd dockerfilegenerator.com
npm install

Development

npm run dev

The dev server starts at http://localhost:4321.

Production Build

npm run build
npm run preview

Deploy

npm run deploy

This builds the site and deploys to Cloudflare Workers via Wrangler.

Project Structure

/
├── public/                 # Static assets
├── src/
│   ├── components/         # Astro components (DockerfileGenerator, ComposeGenerator, StackBuilder, Nav, Footer, etc.)
│   ├── layouts/            # Page layouts
│   ├── lib/                # Utility functions and generators
│   ├── pages/              # Route pages (index, compose, stack-builder, about, contact, etc.)
│   ├── registry/           # Framework registry (provider configs, seeds, metadata)
│   ├── scripts/            # Build-time scripts
│   ├── styles/             # Global styles
│   └── types/              # TypeScript type definitions
├── scripts/                # CLI scripts (sync-registry)
├── astro.config.mjs        # Astro configuration
├── wrangler.jsonc           # Cloudflare Wrangler config
└── package.json

How It Works

1. Select a framework from the supported list
2. Configure options — base image, port, package manager, multi-stage builds, security settings
3. Generate — get a production-ready Dockerfile with best practices baked in
4. Review — the scanner audits your Dockerfile and flags issues
5. Export — copy, download, or export as a zip package

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

Author

Soumo Sarkar — GitHub · Website

License

This project is open source. See the repository for license details.

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Built for developers who ship.