AlmaLinux vs Rocky Linux
AlmaLinux and Rocky Linux: Two RHEL-Compatible Rebuilds
AlmaLinux vs Rocky Linux is a comparison of two community distributions that aim to be binary compatible with Red Hat Enterprise Linux (RHEL). Both rebuild RHEL's source code, so software built for RHEL is expected to run on them without modification. The main differences lie in governance, funding and release approach.
Both projects appeared after CentOS Linux stopped being a stable RHEL rebuild. Each was created to give servers and teams that still needed a free, RHEL-compatible operating system a path forward. For background, see what happened to CentOS.
Governance and Funding Behind Each Project
AlmaLinux is maintained by the AlmaLinux OS Foundation, a community organization. The project was launched by CloudLinux, a company that has continued to sponsor it, and its governance is built around the foundation rather than a single company.
Rocky Linux is governed by the Rocky Enterprise Software Foundation. Its founder, Gregory Kurtzer, is also a co-founder of the original CentOS project, which gives Rocky a direct link to CentOS history. Both projects accept sponsorship and contributions from companies and individuals.
Compatibility and Release Approach
Both projects follow RHEL releases and aim to provide packages that match RHEL closely. Moving from RHEL or from CentOS to either one is intended to be simpler than moving to a different distribution family, because the software stays the same. Compatibility is a goal the projects work toward, not a guarantee for every workload.
Differences show up in build infrastructure, the timing of releases and how quickly each project publishes fixes after RHEL. Those details change over time, so check each project's current documentation before choosing. Shared commitments, such as publishing sources and keeping the rebuild close to RHEL, make the two broadly similar in practice.
Support and Adoption in Hosting
Neither project is supported directly by Red Hat. Commercial support comes from third parties, from companies that build products on top of the distributions, and from hosting providers that include it in their plans. Adoption varies by provider and region, and both distributions are offered as images by many cloud platforms.
When comparing them, look at the sponsoring organization, the speed of security fixes, the support options available to you and whether your hosting provider or software vendor officially supports the distribution. Those practical factors usually matter more than small technical differences.
Frequently asked questions
Which is better, AlmaLinux or Rocky Linux?
Neither is better in general. Both are free, RHEL-compatible and widely used. The better choice depends on which governance model, support partners and release practices suit your organization, and on whether your hosting provider or software vendor supports it.
Are AlmaLinux and Rocky Linux fully compatible with RHEL?
Both aim for binary compatibility with RHEL, so applications built for RHEL generally run unchanged. Compatibility is a goal rather than a guarantee, however, so test critical software before relying on it in production. Some vendors certify software for RHEL but not for these rebuilds.