crun

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About

crun is ranked #73 of 84 in image compression software on Inferse. It runs on Linux, Self-hosted. There is a free plan.

Compared on image compression software

Free plan: Yesgithub.com
Rootless mode: Yesgithub.com
Windows containers: Nogithub.com
Image format: ocigithub.com
Runtime interface: othergithub.com
Supported host OS: Linux (including Fedora, RHEL/CentOS, Ubuntu, Alpine and Tumbleweed)github.com

Facts

Free plan: Yesgithub.com · 22 Sept 2026
Product: crun is a fast, low-memory-footprint OCI container runtime written in C.github.com · 3 Oct 2026
OCI compatibility: crun conforms to the OCI Container Runtime specifications.github.com · 3 Oct 2026
Library: The project aims to make crun usable as a library for programs that manage OCI containers without an external process.github.com · 3 Oct 2026
Performance: The README reports 100 sequential /bin/true containers taking 1.69 seconds with crun and 3.34 seconds with runc on the author's machine.github.com · 3 Oct 2026
Integration: The README demonstrates using crun with Podman via the --runtime option.github.com · 3 Oct 2026
Build platforms: The README lists build instructions for Fedora, RHEL/CentOS Stream 9 and 10, Ubuntu, Alpine, and openSUSE Tumbleweed.github.com · 3 Oct 2026
Releases: The releases page lists Linux amd64 and arm64 binaries, including variants built with systemd disabled.github.com · 3 Oct 2026
Artifact verification: The README says official release artifacts are signed and provides GPG commands to verify them against the repository keyring.github.com · 3 Oct 2026
Security reporting: The security policy directs vulnerability reports through GitHub Security Advisories rather than public issues or pull requests.github.com · 3 Oct 2026
Security practices: The security policy says CI runs fuzz testing with honggfuzz, AddressSanitizer runtime analysis, and clang-check and clang-format quality checks on pull requests.github.com · 3 Oct 2026
Supported versions: The security policy says the latest version receives regular patch releases, while fixes for prior versions are best-effort and not guaranteed unless specified in a support matrix.github.com · 3 Oct 2026
Security response: The project aims to acknowledge security reports within three business days and says confirmed issues are handled according to severity and impact.github.com · 3 Oct 2026
Steward: The security policy identifies Red Hat, Inc. as the project's open source software steward under the EU Cyber Resilience Act.github.com · 3 Oct 2026
Contributor requirements: The contribution guide says contributors need C knowledge and a Linux environment, and requires a Developer Certificate of Origin sign-off for pull requests.github.com · 3 Oct 2026
Purpose: crun is a fast, low-memory-footprint OCI container runtime written in C.github.com · 3 Oct 2026
Performance: The README reports that, on the maintainer’s machine, running 100 sequential /bin/true containers took 1.69 seconds with crun and 3.34 seconds with runc.github.com · 3 Oct 2026
Container operations: The command-line interface includes create, run, exec, list, pause, resume, update, checkpoint, and restore operations.github.com · 3 Oct 2026
Rootless use: crun can generate a configuration file for an unprivileged user and automatically creates a user namespace when run by a non-root user.github.com · 3 Oct 2026
Integrations: The README documents an Ansible role for automating installation of a statically linked binary and says a Lua binding is available.github.com · 3 Oct 2026
Release verification: The project says official release artifacts are signed with keys listed in crun.keyring and provides GPG verification commands.github.com · 3 Oct 2026
Security testing: The security policy says the codebase is fuzz-tested with honggfuzz and checked with AddressSanitizer, clang-check, and clang-format in CI.github.com · 3 Oct 2026
Vulnerability reporting: The security policy asks reporters to submit vulnerabilities through GitHub Security Advisories rather than public issues or pull requests.github.com · 3 Oct 2026
Response target: The security policy aims to acknowledge reports within 3 business days.github.com · 3 Oct 2026
Support coverage: The project says it regularly issues patch releases for the latest version, while fixes for prior releases are best effort and not guaranteed.github.com · 3 Oct 2026
cgroup limit: The manual says cgroup v1 support is deprecated and will be removed in a future release.github.com · 3 Oct 2026
Maintainer: The latest release page credits Giuseppe Scrivano as the release author.github.com · 3 Oct 2026