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runc vs Sysbox

Both stand on container engines. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

runc

Free plan LinuxSelf-hosted

runc supplies the low-level Linux runtime capabilities behind container software. Its OCI bundle requirement, Linux-only scope, and command-line design make it an infrastructure component rather than a general desktop tool.

Visit runc

Sysbox

Free plan LinuxSelf-hosted

Choose Sysbox if you need a free Linux runtime for rootless system workloads, containerized development, or CI/CD. Look elsewhere if you need VM-level isolation, host-device access inside system containers, or Docker seccomp profiles to restrict allowed syscalls.

Visit Sysbox

The facts

runcSysbox
Free planYesYes
Open sourceNot publishedNot published
Runs onLinux, Self-hostedLinux, Self-hosted
Lowest paid planNot publishedFree or on request
Plans publishedNone1
MakerNot publishedNot published
Websitegithub.comgithub.com
On container engines#26 of 31#22 of 31

runc: what it does well

  • Free OCI container runtime
  • Supports rootless containers with user namespaces
  • Offers separate container lifecycle commands
  • Seccomp filtering enabled by default
  • Apache 2.0 licensed

What to know first

  • Linux hosts only
  • Requires containers in OCI bundle format
  • Not recommended for most direct users
  • Does not build images

Sysbox: what it does well

  • Runs system workloads in rootless containers.
  • Works with Docker and Kubernetes managers and orchestrators.
  • Supports image building and the OCI image format.
  • Free and open-source under Apache License 2.0.

What to know first

  • Isolation is weaker than VM-based runtimes because containers share the Linux kernel.
  • Does not support exposing host devices inside system containers.
  • Does not support narrowing allowed syscalls through a Docker seccomp profile.
  • Some distribution installation paths are marked work-in-progress.

Alternatives to runc Alternatives to Sysbox The whole list