Free Docker Compose Generator

The Docker Compose Generator is a free online tool that creates docker-compose.yml files with pre-configured services like databases, caches, and web servers.

Yes, it is completely free with no registration required. All file generation happens client-side in your browser.

The Docker Compose Generator includes templates for PostgreSQL, MySQL, MongoDB, Redis, Nginx, Node.js, and many other popular services.

Absolutely. The Docker Compose Generator processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Yes, the Docker Compose Generator is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the Docker Compose Generator in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

The Docker Compose Generator supports a wide range of popular formats and languages. Check the tool interface for the full list of supported options.

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

The Docker Compose Generator works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

The generator lets you target Compose file versions 2.4, 3, 3.7, 3.8, or 3.9. Versions 2.x and the legacy 3.x line required a top-level "version:" field at the top of the file, but the modern Compose Specification dropped it entirely. That is why selecting 3.8 here produces a file with no "version:" key — current Docker Compose (the "docker compose" plugin) reads the spec and treats that field as obsolete, printing a warning if it is present. Choose 2.4 only if you rely on older features like per-service "mem_limit" without a deploy block; otherwise pick 3.8 for the cleanest, most future-proof output. Set your target version in the tool and the generated YAML adjusts its structure automatically so the file runs without deprecation warnings.

Paste your existing "docker run" command into the import box and the generator parses the common flags into a Compose service for you. It reads the image name, "-p" host-to-container port mappings, "-e" environment variables, "-v" volume mounts, and the "--name" you assigned, then writes them as properly indented YAML keys. This is useful when you have a working one-liner from a tutorial or your shell history and want a reusable, version-controllable file instead of a throwaway command. After import you can keep editing — add a restart policy, depends_on, or a healthcheck — and the live preview updates as you go. It turns container commands you already trust into a declarative file you can commit and run with a single "docker compose up" in the tool.

They solve related but different problems. "depends_on" only controls the order in which containers start — it makes Docker launch a dependency first, but it does not wait for that service to be ready to accept connections, so a database container can be "started" while still initializing. A healthcheck defines a test command, interval, timeout, retries, and start period that report whether a service is actually healthy. Combining them — depends_on with a "condition: service_healthy" against a defined healthcheck — is what makes one service wait until another is genuinely ready. This generator lets you set depends_on links and configure full healthchecks per service, and its validator warns if a depends_on entry points at a service that does not exist. Build both into your stack in the tool so containers come up in a reliable, dependency-aware sequence.

Both are common mistakes the built-in validator flags before "docker compose up" does. A port conflict happens when two services bind the same host port — for example two services both mapping "8080:80" — since only one process can listen on a given host port at a time; change one side, like "8081:80", to fix it. An undefined volume error means a service references a named volume that was never declared at the top level of the file, so Compose cannot create it. The generator catches these inline as you edit, along with services missing a name or image, duplicate service names, depends_on targets that do not exist, and port mappings missing their container side. Watch the validation warnings in the tool and resolve them before copying, so your stack starts cleanly the first time.

A named volume is storage that Docker creates and manages itself; you declare it once under the top-level "volumes:" section and reference it by name, and Docker decides where the data physically lives. It is the right choice for database data and other state you want to persist and back up without caring about the host path. A bind mount maps a specific host directory or file straight into the container using a host path, like "./config:/etc/app" — ideal for injecting config files or live-reloading source code during development. Named volumes are more portable across machines; bind mounts give you direct access to files on the host. This generator supports both and warns when a service uses a named volume you forgot to define at the top level. Configure either type per service in the tool and see the YAML written correctly.