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DataToolings

Free Online Docker Compose Generator

Generate Docker Compose YAML files online. Add services, set images, ports, volumes, and environment variables with a visual builder. Free, instant download.

What is Docker Compose Generator?

Docker Compose Generator is a free online tool that helps you create docker-compose.yml files visually. Add services, configure images, ports, environment variables, volumes, and dependencies — then download or copy the generated YAML.

How to Use Docker Compose Generator

  1. Fill in the service name and Docker image for each service
  2. Add port mappings (one per line, e.g. 3000:3000)
  3. Add environment variables (one per line, e.g. NODE_ENV=production)
  4. Click "Add Service" to add more services, then download or copy the YAML

Features

  • Add unlimited services with name, image, ports, env vars, volumes, and depends_on
  • Real-time YAML preview as you type
  • Download as docker-compose.yml or copy to clipboard
  • Generates Docker Compose v3.8 format

FAQ

What format should port mappings use?

Use host:container format, one per line. For example: 8080:80 maps host port 8080 to container port 80.

How do I set environment variables?

Enter one variable per line in KEY=value format. For example: DATABASE_URL=postgres://user:pass@db:5432/mydb.

How do I use depends_on?

Enter the names of services this service depends on, one per line. Docker Compose will start those services before this one.