K3s

Lightweight, certified Kubernetes distribution packaged as a single small binary for edge, IoT and small servers.

Open sourceSelf-hostableContainer orchestration platforms

Updated Nov 1, 2026 · AppBreakup editorial · Linux, Self-hosted

Visit K3s See 6 alternatives

Is K3s free?

Yes, free and open source

License:: Apache-2.0

Checked on K3s's site Nov 1, 2026

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All 6

Kubernetes
Open source
Rancher Desktop
Open source
HashiCorp Nomad
Free plan + paid

Verified facts: 4 of 4
Alternatives ranked: 6
Approved reviews: 0
Visits sent from here: 0

About K3s

K3s is a slimmed-down Kubernetes distribution, originally built by Rancher, that keeps full Kubernetes compatibility while cutting the install down to one binary under 70MB. A single command sets up a working server node, and extra machines join as agents with a token. It removes or replaces heavier parts of upstream Kubernetes and bundles what a small cluster needs, which makes it popular for home labs, Raspberry Pi clusters, CI runners and edge devices in remote locations. It supports x86_64, ARM64 and ARMv7. Because it is certified Kubernetes, kubectl, Helm charts and existing manifests work unchanged, so skills and configs carry over to bigger clusters. K3s is free and open source under the Apache 2.0 licence and is a CNCF Sandbox project; commercial support is available through SUSE's Rancher products. It runs on Linux only, and very large production clusters usually choose a fuller distribution or a managed cloud service instead.

Best for: Home labs, edge devices and small clusters that want real Kubernetes with little overhead.

What works

Installs in one command and runs as a single small binary
Certified Kubernetes, so kubectl, Helm and manifests work as usual
Runs well on ARM boards like the Raspberry Pi

Why people leave

Linux only; no native Windows or macOS server
Still Kubernetes underneath, so the concepts and learning curve remain
Large production estates often need a fuller distribution or managed service

K3s vs Kubernetes, Rancher Desktop and HashiCorp Nomad

From each app's listing and the prices verified on its own site. A dash means we haven't verified it yet.

Attribute	K3s	Kubernetes	Rancher Desktop	HashiCorp Nomad
Pricing	Open source	Open source	Open source	Free plan + paid
Verified price	—	—	—	—
Free plan	Free app	Free app	Free app	Yes
Open source	Yes	Yes	Yes	No
Self-hostable	Yes	Yes	No	Yes
Platforms	Linux, Self-hosted	Linux, Self-hosted	Windows, macOS, Linux	Linux, Windows, macOS, Self-hosted

Top K3s alternatives

See all 6

1
Kubernetes
Upstream Kubernetes, assembled yourself or via a managed cloud service, for larger production clusters.
68.8
2
Rancher Desktop
Desktop app that runs K3s for you on Mac, Windows or Linux, for local development without managing the cluster by hand.
65.0
3
HashiCorp Nomad
Another single-binary scheduler that also runs non-container workloads and is simpler to reason about.
64.8
4
Red Hat OpenShift
A heavier, fully supported Kubernetes platform for enterprises that want a console and vendor backing.
61.8
5
Dokku
For a single small server, Git-push app deploys without any cluster concepts to learn.
51.2

Why people left K3s

In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.

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K3s: common questions

What is K3s?

K3s: Lightweight, certified Kubernetes distribution packaged as a single small binary for edge, IoT and small servers. Best for home labs, edge devices and small clusters that want real Kubernetes with little overhead. Available for Linux, and you can host it yourself.

Is K3s free?

Yes. K3s is free, open-source software that you can host yourself.

Is K3s open source?

Yes. The source code is on GitHub at k3s-io/k3s. You can also run it on your own server.

What platforms does K3s run on?

K3s is available for Linux and Self-hosted.

What are the best alternatives to K3s?

The highest-ranked K3s alternatives right now are Kubernetes, Rancher Desktop and HashiCorp Nomad. See the full ranked list for pricing, platforms and verified facts.

K3s vs Kubernetes: what's the difference?

Both K3s and Kubernetes are free and open source. Both run on Linux.

See all 6 K3s alternatives

K3s facts

4 of 4 verified

License: Apache-2.0; Checked Nov 1, 2026github.com(opens source in a new tab); “License: Apache-2.0 (Apache License 2.0).”
Binary size: Under 70MB; Checked Nov 8, 2026k3s.io(opens source in a new tab); “Simplified & Secure K3s is packaged as a single <70MB binary”
ARM support: ARM64 and ARMv7; Checked Nov 8, 2026k3s.io(opens source in a new tab); “Optimized for ARM Both ARM64 and ARMv7 are supported with binaries and multiarch images available for both.”