Generate docker-compose.yml visually — add nginx, MySQL, Redis, MongoDB and 14+ services with one click
Built & maintained by Pappu Venkata Subbi Reddy, founder of Clacify · Updated August 2026
The Docker Compose Generator builds a working docker-compose.yml file visually, without needing to remember or look up each service's image name, default port, or required environment variables. Pick services from a curated catalog of 14 — covering web servers, databases, caches, message queues, search, monitoring, admin UIs, and app runtimes — toggle them on, adjust the service name, image tag, and environment variables for each, optionally wire up depends_on relationships between them, and the tool generates valid, ready-to-run YAML you can copy or download directly. It's aimed at developers spinning up a local development stack or a quick multi-container prototype who'd rather click through a checklist than hand-write boilerplate YAML from documentation.
Each catalog entry stores its real default configuration — image and tag, host/container port mappings, volume mounts (bind mounts for config files, named volumes for persistent data like databases), starter environment variables, and restart policy. Selecting a service clones that default configuration into your project so you can edit it independently. The YAML is then assembled directly as text: a name: line for the project, then a services: block with one nested entry per selected service (image, command and working_dir where relevant, restart policy, ports, environment, volumes, and depends_on), followed by a top-level volumes: block auto-generated for any named (non-bind-mount) volumes referenced by the services you picked. Because Docker Compose deprecated the old version: "3.8" style header in favour of the Compose Specification, the generator omits it entirely and uses the current name: convention instead — output that works with a current Docker Compose without a deprecation warning.
| Service | Category | Image:tag |
|---|---|---|
| Nginx | Web Server | nginx:alpine |
| MySQL | Database | mysql:8.0 |
| PostgreSQL | Database | postgres:16-alpine |
| Redis | Cache | redis:7-alpine |
| MongoDB | Database | mongo:7 |
| RabbitMQ | Message Queue | rabbitmq:3-management-alpine |
| Elasticsearch | Search | elasticsearch:8.12.0 |
| Grafana | Monitoring | grafana/grafana:latest |
| Prometheus | Monitoring | prom/prometheus:latest |
| Adminer | DB Admin | adminer:latest |
| Portainer | Docker UI | portainer/portainer-ce:latest |
| Node.js App | App | node:20-alpine |
| Python App | App | python:3.12-slim |
| MailHog | Dev Tools | mailhog/mailhog:latest |
Every service starts from a real, commonly used image and tag — Alpine variants where one exists, since they produce smaller, faster-pulling containers for local development.
A bind mount maps a specific file or folder on your machine into the container (used here for things like an nginx.conf or a Prometheus config file you want to edit directly), while a named volume is Docker-managed storage that persists data between container restarts without exposing a raw folder on your host (used here for database data directories like MySQL's /var/lib/mysql). Mixing these up is a common beginner mistake — bind-mounting a database's data directory to a host folder often causes permission errors, while named-volume-mounting a config file you want to hand-edit makes it awkward to reach. The generator picks the right one for each service by default.
A depends_on entry tells Docker Compose to start one container before another, but it does not wait for the dependency to actually be ready to accept connections — a database container can report "started" well before its database engine has finished initialising and is ready to accept queries. An app container that depends_on a database may still fail to connect on its very first boot if the database is slower to become ready. For anything beyond local development, pair depends_on with a proper health check or a retry loop in your app's startup code rather than assuming order alone guarantees readiness.
Older docker-compose.yml files start with a version: "3.8"-style header. Docker Compose has since moved to the Compose Specification, where that field is no longer required and the top-level name: field (used to namespace containers, networks, and volumes for the project) takes its place. The generator follows the current convention, so the file it produces won't trigger the "the attribute `version` is obsolete" warning that current versions of Docker Compose print for older-style files.
Use Clacify's Docker Compose Generator — click to add services (e.g. nginx + MySQL + Redis), configure the ports and environment variables for each, and click Generate. Copy the resulting docker-compose.yml and place it in your project root. Run 'docker-compose up -d' to start all services.
Docker Compose is a tool for defining and running multi-container Docker applications. You define all services (web server, database, cache) in a single docker-compose.yml file and start/stop them all with one command (docker-compose up/down). It simplifies local development environments, CI/CD pipelines, and staging server setup.