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Cloud · head to head

K3s vs Wiz

K3s logo

K3s

Cloud

Lightweight certified Kubernetes distribution in a single binary

From
Free
Rated
-
Wiz logo

Wiz

Cloud

Cloud and AI security platform unifying code, cloud, and runtime protection.

From
On request
Rated
-

The short version

  • Only K3s has a free tier, so it costs nothing to try first.
  • Each has a real cost: K3s the SQLite default is single-server only; highly available control planes need etcd or an external datastore, which removes much of the simplicity; Wiz no public pricing; licensing requires a custom quote based on workloads and sensors.
  • They diverge on capability: K3s covers Single binary, Wiz covers Cloud security posture management.

Where they differ

Only the attributes on which K3s and Wiz actually diverge.

Attributes where K3s and Wiz differ
AttributeK3sWiz
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsLinux, ARM, Self-hostedweb, api

Identical on both: 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 K3s

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

Only in Wiz

  • Cloud security posture management
  • Code security (Wiz Code)
  • Runtime threat detection (Wiz Defend)
  • AI security agents
  • AI workload protection
  • Attack path analysis

What people use each for

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

K3s

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

Wiz

  • Identifying cloud misconfigurations across multi-cloud environmentsnot K3s
  • Securing code from IDE through CI/CD deploymentnot K3s
  • Detecting and responding to active threats at runtimenot K3s
  • Governing AI workloads and models in the cloudnot K3s
  • Prioritizing risk with cross-environment attack path analysisnot K3s

Where each one falls short

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

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

Wiz

  • No public pricing; licensing requires a custom quote based on workloads and sensors.
  • Modular licensing across Cloud, Code, Defend, and Sensor products can complicate cost planning.
  • Full runtime protection value depends on deploying Wiz Sensor agents, adding operational overhead.
  • Primarily aimed at mid-to-large enterprises despite the smaller Wiz Go bundle.

Pricing, plan by plan

K3s

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

Wiz

On request

No published plan breakdown. See the Wiz review.

Which should you pick?

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.

Choose Wiz if

  • You need cloud security posture management.
  • You work on web, api.
  • You also want code security (wiz code).

Questions people ask

Is K3s or Wiz better?
Neither clearly leads. K3s starts at Free and Wiz at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, K3s or Wiz?
K3s has a free tier; the other does not. Paid plans start at Free for K3s and On request for Wiz.
Does K3s or Wiz run on more platforms?
K3s runs on Linux, ARM, Self-hosted. Wiz runs on web, api.
Can I use K3s for free?
Yes. K3s has a free tier, so you can try it without paying. Wiz starts at On request.
What is K3s best used for?
K3s is most often used for kubernetes on edge sites and iot hardware where full clusters will not fit, development and ci clusters that must start fast and cost nothing, small production clusters where full kubernetes is more operations than the workload justifies, teaching and learning kubernetes without cloud spend. Of those, kubernetes on edge sites and iot hardware where full clusters will not fit and development and ci clusters that must start fast and cost nothing are not what Wiz is typically brought in for.
What can K3s do that Wiz cannot?
K3s covers Single binary, SQLite by default, Certified conformant, Batteries included. Wiz covers Cloud security posture management, Code security (Wiz Code), Runtime threat detection (Wiz Defend), AI security agents.

Answered from the vendors’ own pages

K3s: Is K3s free?

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

Wiz: How much does Wiz cost?

Wiz does not publish standard pricing. The platform uses modular licensing based on workloads, active developers, log ingestion, or sensors. All pricing requires requesting a custom quote directly from the company.

Source
K3s: Is K3s real Kubernetes?

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

Wiz: Does Wiz offer a free trial?

No free trial information is mentioned on Wiz's pricing page. Pricing is determined by custom quote based on organizational needs.

Source
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.

Wiz: What products does Wiz offer?

Wiz provides five modular licensing options: Wiz Cloud, Wiz Code, Wiz Defend, Wiz Sensor, and Wiz Go Bundle for SMBs, allowing organizations to scale based on specific security requirements.

Source
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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