Docker → Compose Guide
Convert docker run commands to docker-compose.yml format instantly. Use our free online tool to get started instantly.
What is Docker → Compose?
Docker → Compose is a free online tool that convert docker run commands to docker-compose.yml format instantly. It processes everything locally in your browser, so your data never leaves your device. Whether you are a developer looking to streamline your workflow or a professional needing quick and reliable results, this tool delivers instant, privacy-focused functionality without requiring any sign-up or software installation.
How to Use Docker → Compose
Using Docker → Compose is straightforward. Follow these steps to get started:
Step 1: Paste your docker run command
Copy your docker run CLI command and paste it into the input area above.
Step 2: Review the converted compose file
The docker-compose.yml output updates in real-time as you type. Ports, volumes, environment variables, and all flags are mapped to compose format.
Step 3: Copy or download the result
Click Copy to grab the compose YAML, or download it as a .yml file for use in your project.
Key Features of Docker → Compose
Docker → Compose comes with a range of features designed to make api tasks easier:
Flag Mapping: Maps all common docker run flags to compose equivalents: ports (-p), volumes (-v), env (-e), networks, restart policies, healthchecks, and more.
Real-Time Conversion: See the compose YAML update live as you edit the docker run command  no button clicking needed.
Syntax Validation: Invalid docker run commands are flagged with clear error messages so you can fix and retry.
Privacy First: All parsing happens locally in your browser. Your docker commands never leave your device.
Tips & Best Practices
Get the most out of Docker → Compose with these tips:
Use --name for predictable service names: The --name flag becomes the service name in compose. Without it, the service name is derived from the image name. Always use --name for clarity.
Check restart policies: The --restart flag maps to the restart policy in compose. 'unless-stopped', 'always', 'on-failure', and 'no' are all supported.
Frequently Asked Questions
Does it support all docker run flags?
It supports all commonly used flags including -p, -v, -e, --name, --restart, --network, -d, -it, --rm, --memory, --cpus, --env-file, -w, -u, --entrypoint, --label, --expose, --add-host, --platform, --health-cmd, and more.
How are ports mapped to compose format?
Docker run -p 8080:80 becomes ports: ['8080:80'] in compose. Multiple -p flags produce multiple port entries.
How are volumes converted?
Docker run -v ./data:/app/data becomes volumes: ['./data:/app/data']. Named volumes, bind mounts, and volume drivers are all preserved.
Does it handle environment variables?
Yes. Both -e VAR=value and -e VAR (without value, using host env) are supported. --env-file is mapped to env_file in compose.
Is my docker command sent to any server?
No. All parsing and conversion happens locally in your browser. Your commands are never transmitted or stored.
Can I convert docker run commands with multiple containers?
This tool converts a single docker run command to a single service in docker-compose.yml. For multi-container setups, convert each command separately and combine the services.
What compose version does the output use?
The generated compose file uses version 3 syntax which is compatible with modern Docker Compose (v2) and Docker Swarm.