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Cloud · head to head

CapRover vs K3s

CapRover logo

CapRover

Cloud

Free self-hosted platform built on Docker Swarm with a dashboard and automatic certificates

From
Free
Rated
-
Full reviewWebsite
K3s logo

K3s

Cloud

Lightweight certified Kubernetes distribution in a single binary

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: CapRover since June 2026 one pseudonymous account wrote 97 of roughly 100 commits and the next human contributor wrote one, so there is no identifiable person or company to contract with, escalate to or hold responsible.; K3s the SQLite default is single-server only; highly available control planes need etcd or an external datastore, which removes much of the simplicity
  • They diverge on capability: CapRover covers One-click applications, K3s covers Single binary.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which CapRover and K3s actually diverge.

Attributes where CapRover and K3s differ
AttributeCapRoverK3s
PlatformsWeb, Linux, Docker, CLI, Self-hostedLinux, ARM, Self-hosted

Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), user rating (Not yet rated), category (Cloud).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in CapRover

  • One-click applications
  • Automatic certificates
  • Web dashboard
  • Multiple deploy paths
  • Docker Swarm clustering
  • Custom nginx configuration

Only in K3s

  • Single binary
  • SQLite by default
  • Certified conformant
  • Batteries included
  • Low resource footprint
  • Simple install

What people use each for

The jobs each tool is most often brought in to do.

CapRover

  • Running a personal server or homelab with several applications behind automatic certificatesnot K3s
  • A two person team that wants a dashboard rather than a terminal for deployments on one boxnot K3s
  • Standing up one-click databases and internal tools without writing Compose filesnot K3s
  • Hosting client demos cheaply where downtime is inconvenient rather than expensivenot K3s

K3s

  • Kubernetes on edge sites and IoT hardware where full clusters will not fitnot CapRover
  • Development and CI clusters that must start fast and cost nothingnot CapRover
  • Small production clusters where full Kubernetes is more operations than the workload justifiesnot CapRover
  • Teaching and learning Kubernetes without cloud spendnot CapRover

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

CapRover

  • Since June 2026 one pseudonymous account wrote 97 of roughly 100 commits and the next human contributor wrote one, so there is no identifiable person or company to contract with, escalate to or hold responsible.
  • Donations over the last twelve months totalled 285 US dollars and there is no commercial tier, so no paid support exists at any price and no maintenance commitment is funded.
  • The LICENSE file is Apache 2.0 with a superseding appendix that bans redistributing a paid version and refers to paid features that do not yet exist, and GitHub cannot classify it, so the terms already anticipate a commercial change of direction.
  • Releases arrive in bursts with an eleven month gap between September 2023 and August 2024 and two further gaps of about six months since, so there is no basis for assuming a security fix will land promptly.
  • The backup feature is documented as experimental, covers only the CapRover configuration directory and explicitly excludes persistent volumes and container images, so every database has to be dumped separately with its container stopped.

K3s

  • The SQLite default is single-server only; highly available control planes need etcd or an external datastore, which removes much of the simplicity
  • Bundled components such as Traefik are opinionated defaults that larger teams often strip out and replace
  • Removed in-tree cloud provider integrations mean cloud-specific features need external controllers
  • Aimed at small and edge clusters, so very large deployments are better served by a standard distribution

Pricing, plan by plan

CapRover

Free
  • CapRoverFree
    • No paid tier and no hosted offering
    • Unlimited applications, servers and users
    • Community support through Slack and GitHub

K3s

Free
  • K3sFree
    • Full functionality
    • No usage limits
    • Community support

Which should you pick?

Choose CapRover if

  • You need one-click applications.
  • You want to start without paying.
  • You work on Web, Linux, Docker, CLI, Self-hosted.
  • You also want automatic certificates.
CapRover review

Choose K3s if

  • You need single binary.
  • You want to start without paying.
  • You work on Linux, ARM, Self-hosted.
  • You also want sqlite by default.
K3s review

Questions people ask

Is CapRover or K3s better?
Neither clearly leads. CapRover starts at Free and K3s at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, CapRover or K3s?
CapRover starts at Free and K3s at Free.
Does CapRover or K3s run on more platforms?
CapRover runs on Web, Linux, Docker, CLI, Self-hosted. K3s runs on Linux, ARM, Self-hosted.
Can I use CapRover for free?
Both have a free tier, so you can try either at no cost before committing.
What is CapRover best used for?
CapRover is most often used for running a personal server or homelab with several applications behind automatic certificates, a two person team that wants a dashboard rather than a terminal for deployments on one box, standing up one-click databases and internal tools without writing compose files, hosting client demos cheaply where downtime is inconvenient rather than expensive. Of those, running a personal server or homelab with several applications behind automatic certificates and a two person team that wants a dashboard rather than a terminal for deployments on one box are not what K3s is typically brought in for.
What can CapRover do that K3s cannot?
CapRover covers One-click applications, Automatic certificates, Web dashboard, Multiple deploy paths. K3s covers Single binary, SQLite by default, Certified conformant, Batteries included.

Answered from the vendors’ own pages

CapRover: Does CapRover cost anything?

No. There is no paid tier and no hosted version. The only income is donations, which came to 285 US dollars over the last twelve months.

K3s: Is K3s free?

Yes. K3s is open source with no licence fee. SUSE sells commercial support around Rancher separately.

CapRover: Is the licence really Apache 2.0?

Not quite. The LICENSE file is Apache 2.0 plus an appendix that supersedes it in case of conflict, forbidding modification of paid features and redistribution of a paid version. GitHub does not recognise the result as a standard licence.

K3s: Is K3s real Kubernetes?

Yes. It is CNCF-certified conformant, so standard manifests, kubectl and Helm charts work without modification.

CapRover: Does the backup feature protect my databases?

No. It backs up the CapRover configuration directory only and explicitly excludes persistent directories and container images. You have to dump each database yourself with the container stopped.

K3s: Why is K3s smaller than Kubernetes?

It strips legacy, alpha and in-tree cloud provider code, packages everything as one binary, and defaults to SQLite instead of etcd.

CapRover: Can I move off Docker Swarm later?

Not without rebuilding. CapRover is architecturally tied to Swarm, so outgrowing it means migrating applications to a different platform rather than switching a scheduler.

K3s: Can K3s run in production?

Yes, and it does, particularly at the edge and for small clusters. For a highly available control plane you need to move off the SQLite default to etcd or an external datastore.

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