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Docker vs Kubernetes

Compare Docker and Kubernetes on deployment, pricing and source model before you shortlist.

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AttributeDockerOpen sourceKubernetesOpen source
CategoryContainers & KubernetesContainers & Kubernetes
Primary focusBuild and run applications in containersOpen-source container orchestration for deploying and scaling workloads
DeploymentSelf-hostedSelf-hosted
Source modelOpen sourceOpen source
Pricing modelfreemiumopen source
API availableYesYes
Vendor websiteVisit vendor ↗Visit vendor ↗
ITHub profileView full profile →View full profile →

ⓘ Confirm technical details and prices with each vendor before making a decision. Want a third tool in the mix? Open the interactive comparison →

Technical decision guide

Start with the architecture and workload

Docker packages and runs containers; Kubernetes orchestrates containerized workloads across infrastructure. They address different layers and are frequently used together.

Define whether the problem is building and running containers or scheduling, networking and recovering services across a cluster.

Compare these first

  • Image build and local workflow
  • Scheduling and desired-state reconciliation
  • Service networking and storage
  • Cluster operations and workload recovery

Shortlist Docker when

Use Docker for container images, local development and straightforward container execution where cluster orchestration is unnecessary.

Shortlist Kubernetes when

Use Kubernetes when workloads require a cluster control plane, scheduling, service discovery, rollout control and reconciliation.

Run this proof of concept

Package the application with Docker first. Introduce Kubernetes only after demonstrating a concrete requirement such as multi-node scheduling, rollout control, self-healing or standardized platform APIs.

Migration and rollback

Inventory data, identities, integrations and configuration. Test export, import and rollback with production-like data.

Security and operations

Compare access controls, audit evidence, upgrade ownership, observability and recovery procedures.

Total cost

Model licensing, infrastructure, support, data transfer and operator time at the expected scale.

Read the full editorial guide →
Limits to confirm

Do not shortlist until these are tested

Docker

  • Budget for upgrades, backups and incident ownership in the self-hosted operating model.
  • Test API coverage, authentication, rate limits and failure handling against the target workflow.
  • Confirm the exact license and support model for every component you plan to run.

Kubernetes

  • Budget for upgrades, backups and incident ownership in the self-hosted operating model.
  • Test API coverage, authentication, rate limits and failure handling against the target workflow.
  • Confirm the exact license and support model for every component you plan to run.

Official sources and directory fields checked for this comparison on . Recheck current release notes, prices and plan limits before procurement.

Frequently asked questions

Is Docker or Kubernetes open source?

Docker is open source. Kubernetes is open source.

What is the pricing model for Docker vs Kubernetes?

Docker uses a freemium pricing model. Kubernetes uses an open source pricing model. Confirm current rates with each vendor before deciding.

Can Docker and Kubernetes be self-hosted?

Docker is self-hostable. Kubernetes is self-hostable.