Kata Containers

Linux · Self-hosted

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Kata Containers is ranked #11 of 31 in container engines on Freedom251. It runs on Linux, Self-hosted. There is a free plan.

Kata Containers plans and pricing

All plans

Kata Containers Free Apache 2.0 licensed · requires nested virtualization or bare metal katacontainers.io · 5 Oct 2026

Compared on container engines

Free plan: Yes
Rootless mode: Yes
Kubernetes CRI: Yes
Windows containers: No
Image format: oci
Runtime interface: containerd
Supported host OS: Linux

Best Kata Containers alternatives

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Two bars Apptainer Free tier No. 1Free6.6 Two bars BuildKit Free tier No. 2Free6.6 Two bars Docker Desktop Free tier No. 3$9/mo6.6 Two bars Incus Free tier No. 4Free6.6 One bar containerd Free tier No. 5Free6.5 One bar LXD Free tier No. 6$2.08/mo6.5

The record

What it does: Kata Containers is an open-source container runtime that uses lightweight virtual machines to provide workload isolation while fitting into the container ecosystem.
Security: Each workload runs in a dedicated kernel, isolating network, I/O, and memory, with hardware virtualization available as an additional defense layer.
Compatibility: The project supports OCI container images and the Kubernetes CRI interface.
Orchestration: Kata integrates with container management layers including Docker and Kubernetes.
Hypervisors: Supported hypervisors include QEMU, Cloud Hypervisor, and Firecracker.
Hardware and architectures: The site lists Nvidia GPU, FPGA, QAT, RDMA, and SR-IOV hardware support, plus x86_64, aarch64, ppc64le, and s390x architectures.
Host requirement: Kata requires nested virtualization or bare metal, and includes kata-check to check host capability.
Linux distributions: The site lists CentOS, Debian, Fedora, OpenSUSE, RHEL, SLES, and Ubuntu installation guides.
Cloud platforms: The site lists Amazon Web Services, Microsoft Azure, Google Compute Engine, and Vexxhost OpenStack Cloud as platforms for running Kata Containers.
License: Kata Containers is free to use and distribute under the Apache 2.0 license.
Security support: Only the current monthly release series receives security fixes; previous releases are unsupported and there are no long-term-support branches.
Community support: The project offers community contact through Slack and mailing lists and is supported by the Open Infrastructure Foundation.
Intended users: The project is for users seeking container-like performance and integration with stronger workload isolation from virtual machines.
Founded: 2017
Price from: Free

Where it ranks on Freedom251

Best Container Engines in 2026#11 of 31
Best Container Runtime Software in 2026#13 of 27

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Sources

katacontainers.io· checked 5 Oct 2026
katacontainers.io/learn/· checked 5 Oct 2026
katacontainers.io/software/· checked 5 Oct 2026
github.com/kata-containers/kata-containers/blob/ma· checked 5 Oct 2026
katacontainers.io/community/· checked 5 Oct 2026