Visually orchestrate multi-container Docker applications with pre-configured templates, port mapping, persistent volumes, and valid YAML export.
Use the visual generator to prepare a configuration, then validate it with your installed Docker Compose before starting containers.
Applications connecting from the host use port 5433. Other services on the same Compose network generally use db:5432. Change template credentials before using the configuration.
The volume is intended to persist data across container recreation. Download the file and run docker compose config to check it; generating YAML does not launch or test a database.
Review images, published ports, secrets, and volume paths for your environment. A generated configuration is not a deployment-readiness check.
The Free Visual Docker Compose Generator is an interactive visual configuration designer for orchestrating multi-container Docker applications without memorizing complex YAML formatting rules. Building reliable docker-compose.yml files requires configuring port forwards, environment variables, named volume mounts, isolated bridge networks, health checks, and container dependencies. Our visual studio lets developers configure production-ready service stacks with intuitive card controls and instant real-time YAML syntax generation.
Docker Compose YAML is notoriously strict regarding two-space indentation, list syntax, port quoting, and volume mount permissions. A single misplaced tab or unquoted integer port can prevent docker compose up from executing or introduce subtle volume permission bugs. Our generator validates every property in real time, auto-quotes ambiguous port numbers, organizes dependencies, and ensures strict YAML 3.8 / Compose Specification compliance directly in your browser.
Jumpstart projects using pre-configured, battle-tested templates for PostgreSQL, Redis, MySQL, MongoDB, Nginx, RabbitMQ, Node.js, and Python FastAPI. Customize environment variables, attach persistent data volumes, define restart policies like unless-stopped, and connect containers across custom networks. Copy the validated YAML code to your clipboard or download the docker-compose.yml file directly to start your stack in seconds.
Click to add popular database, cache, web server, and backend services like PostgreSQL, Redis, Nginx, or Node.js with production defaults.
Specify host-to-container port mappings, attach named or bind volume paths, and define environment variables for database credentials.
Group services into custom isolated bridge networks and select restart policies such as unless-stopped or always for resiliency.
Verify the syntax-highlighted YAML output on the live code panel, copy it to your clipboard, or download the formatted configuration file.
Curated container configurations for PostgreSQL, Redis, MySQL, MongoDB, Nginx, RabbitMQ, Node.js, and Python FastAPI stacks.
Instant, formatted YAML synchronization with strict two-space indentation and standard Docker Compose schema validation.
Easily manage container port forwarding, persistent volume persistence paths, environment dictionaries, and bridge network boundaries.
Catches indentation mistakes, duplicate ports, and formatting errors before deployment, with direct file download capabilities.
Ensure port mappings are properly formatted and database volumes are persistent. Group interrelated microservices into isolated bridge networks for defense in depth.
Combine service templates and adjust host ports to avoid conflicts with services already running on your machine.
Export YAML for team review, replace example credentials, and validate it with the Docker Compose version used by the team.
| Compose Directive | YAML Syntax Pattern | Operational Function & Best Practice |
|---|---|---|
| ports | "8080:80" (quoted string) | Host-to-container port forwarding; always quote to prevent sexagesimal parsing |
| environment | KEY: value dictionary or array | Passes configuration variables, database credentials, and runtime flags |
| volumes | named_vol:/data or ./host:/app | Persists container state across rebuilds or binds host code for live reloading |
| networks | custom_net: { driver: bridge } | Isolates microservice inter-communication from external access vectors |
| restart: unless-stopped | Policy string | Restarts container on crashes or system reboots unless manually stopped |
| depends_on | List of prerequisite services | Coordinates startup order between application servers and dependent databases |
In YAML specifications, unquoted port mappings like 80:80 or 22:22 can be interpreted as sexagesimal (base-60) numbers rather than strings. Quoting port mappings such as "8080:80" prevents YAML parser misinterpretation.
Named volumes are managed entirely by the Docker daemon in a dedicated storage area and are ideal for persistent database data. Bind mounts map a specific folder from your local host machine into the container, commonly used for live code hot-reloading.
With restart: unless-stopped, a container will automatically restart if the Docker daemon reboots or the container crashes, but will respect a manual docker compose stop command without immediately rebooting.
No. The visual editor is 100% browser-based and generates clean standard docker-compose.yml files entirely client-side without any server dependencies.
An internet connection is required to open tools and refresh a temporary session. Processing stays on your device; the handshake sends a random challenge, not files or text inputs. Libraries, fonts or models may download. Local processing cannot remove risks from an untrusted device or extension.
version: '3.8'
services:
db:
image: postgres:16-alpine
restart: unless-stopped
ports:
- "5432:5432"
environment:
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=secretpassword
- POSTGRES_DB=my_app
volumes:
- postgres_data:/var/lib/postgresql/data
networks:
- app_network
web:
image: nginx:alpine
restart: unless-stopped
ports:
- "80:80"
volumes:
- ./html:/usr/share/nginx/html:ro
depends_on:
- db
networks:
- app_network
volumes:
postgres_data:
networks:
app_network:
driver: bridge