Docker Compose to Kubernetes Converter Online — Free Compose to K8s Generator

How to Docker Compose to Kubernetes Online

1. 1

   Paste your docker-compose.yml content into the input panel on the left.

2. 2

   Configure conversion options: target namespace, default replica count, and optional image registry prefix.

3. 3

   Click "Convert" or press ⌘↵ to generate the Kubernetes manifests.

4. 4

   Review the generated resources across the output tabs — Deployments, Services, ConfigMaps, Secrets, and PVCs.

5. 5

   Copy individual resources with ⌘⇧C or download all manifests as a single multi-document YAML file.

Docker Compose to Kubernetes Features

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  Supports Docker Compose file formats v2 and v3 including the latest Compose Specification

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  Generates Kubernetes Deployment manifests with configurable replica counts and resource names

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  Creates Service manifests from exposed ports — ClusterIP for internal ports, LoadBalancer for host-bound ports

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  Extracts environment variables into ConfigMap resources for non-sensitive configuration

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  Detects potential secrets (keys containing PASSWORD, SECRET, KEY, TOKEN) and generates separate Secret manifests

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  Maps named volumes to PersistentVolumeClaim resources with configurable storage class

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  Supports custom Kubernetes namespace injection into all generated resource metadata

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  Optional image registry prefix prepended to all image references for private registries

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  Outputs valid multi-document YAML with `---` separators, ready for `kubectl apply -f`

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  Runs entirely in your browser — your Compose files are never uploaded to any server

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  Keyboard shortcut ⌘↵ to convert, ⌘⇧C to copy output

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  AI explanations explain generated Kubernetes resource choices and configuration options

Frequently Asked Questions

Which Docker Compose versions are supported?

The converter supports Docker Compose v2, v3, and the current Compose Specification (version-less format). Keys from all versions are recognised including `services`, `volumes`, `networks`, `configs`, and top-level `x-` extension fields (which are ignored).

How are Docker Compose secrets detected?

Environment variable keys containing the substrings PASSWORD, SECRET, KEY, TOKEN, or CREDENTIALS (case-insensitive) are separated into Kubernetes Secret manifests. All other environment variables are placed into a ConfigMap. You should review and adjust the generated Secrets before deploying.

How are volumes converted to Kubernetes resources?

Named volumes defined in the Compose file become PersistentVolumeClaim (PVC) resources, and the Deployment mounts them at the same container path. Anonymous volumes (not named) are converted to emptyDir volumes in the pod spec.

What about `depends_on` and networking?

`depends_on` ordering is not directly representable in Kubernetes. The converter drops it and relies on Kubernetes restart policies for startup ordering. All services in the same Compose file are placed in the same namespace and can communicate via their Service DNS names.

Can I use the output with Helm?

The generated YAML is plain Kubernetes manifests, not Helm charts. You can use them directly with `kubectl apply` or copy them into a Helm chart `templates/` directory. For full Helm support (values.yaml, templating), you would need to manually parameterise the generated manifests.

How does this compare to the Kompose CLI tool?

Kompose is the official Docker-to-Kubernetes conversion CLI tool. This browser-based converter offers a faster, zero-install alternative for quick conversions. For production use, Kompose supports more advanced features and should be your primary tool — this converter is ideal for exploration and learning.

Is my docker-compose.yml safe to paste here?

Yes. All conversion runs locally in your browser — no YAML is sent to any server. This is safe even if your Compose file contains internal service names or non-sensitive configuration values.

What Kubernetes API version is used in the output?

The converter targets stable API versions: `apps/v1` for Deployments, `v1` for Services, ConfigMaps, Secrets, and PersistentVolumeClaims. These API versions are supported in all actively maintained Kubernetes releases (1.16+).

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