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Operating Systems · head to head

Red Hat Enterprise Linux vs Rocky Linux

Red Hat Enterprise Linux logo

Red Hat Enterprise Linux

Operating Systems

Commercial Linux distribution with long-term support

From
On request
Rated
-
Full reviewWebsite
Rocky Linux logo

Rocky Linux

Operating Systems

Community rebuild of Red Hat Enterprise Linux that still targets bug-for-bug binary compatibility

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Rocky Linux has a free tier, so it costs nothing to try first.
  • Each has a real cost: Red Hat Enterprise Linux subscription cost per system is significant and scales with fleet size; Rocky Linux source access depends on routes Red Hat has not yet closed, so no procurement team can obtain a contractual guarantee that one-to-one parity will still exist in three years.
  • They diverge on capability: Red Hat Enterprise Linux covers Certified ecosystem, Rocky Linux covers Binary compatibility.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Red Hat Enterprise Linux and Rocky Linux actually diverge.

Attributes where Red Hat Enterprise Linux and Rocky Linux differ
AttributeRed Hat Enterprise LinuxRocky Linux
Starting priceOn requestFree
Pricing modelPer-system annual subscription; developer subscriptions available at no costOpen source, no licence fee
Free tierNoYes
PlatformsLinux, Server, Cloudx86-64, ARM64, ppc64le, s390x, Cloud images, Containers

Identical on both: user rating (Not yet rated), category (Operating Systems).

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 Red Hat Enterprise Linux

  • Certified ecosystem
  • Commercial support
  • SELinux and compliance tooling

Only in Rocky Linux

  • Binary compatibility
  • Peridot build system
  • migrate2rocky
  • Secure Boot
  • Special interest groups

Both cover

  • Ten-year lifecycle

What people use each for

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

Red Hat Enterprise Linux

  • Regulated industries needing a contracted party accountable for security fixesnot Rocky Linux
  • Applications certified against a specific OS that must not move for yearsnot Rocky Linux
  • Enterprises procuring against hardware and ISV certification listsnot Rocky Linux

Rocky Linux

  • Replacing CentOS 7 or CentOS 8 fleets without moving to a per-socket subscriptionnot Red Hat Enterprise Linux
  • HPC and research clusters where node counts make commercial licensing impracticalnot Red Hat Enterprise Linux
  • Hosting and managed service providers who need a RHEL-shaped platform at zero licence costnot Red Hat Enterprise Linux
  • Development and test tiers that must match a RHEL production tier exactlynot Red Hat Enterprise Linux

Where each one falls short

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

Red Hat Enterprise Linux

  • Subscription cost per system is significant and scales with fleet size
  • Packages are deliberately older than current upstream, which frustrates developers wanting recent toolchains
  • The 2023 source availability changes strained relations with downstream rebuilds and remain contentious
  • Considerable overkill for workloads with no compliance or support requirement

Rocky Linux

  • Source access depends on routes Red Hat has not yet closed, so no procurement team can obtain a contractual guarantee that one-to-one parity will still exist in three years.
  • Errata are published after Red Hat, so for critical fixes there is usually a short window, and for point releases a longer one, where a patch is public upstream and not yet available to you.
  • No ISV certification: your Oracle, SAP or storage vendor contract names RHEL, and support staff can legitimately refuse to reproduce a fault on Rocky.
  • Governance and the main commercial sponsor share leadership, which buyers who compare it against AlmaLinux's elected board find harder to assess for independence.
  • There is no SLA and no phone number in the free product, so an outage escalation ends in community chat unless a CIQ contract is already in place.

Pricing, plan by plan

Red Hat Enterprise Linux

On request

No published plan breakdown. See the Red Hat Enterprise Linux review.

Rocky Linux

Free
  • Rocky LinuxFree
    • No subscription or registration
    • Unlimited installations
    • All architectures and images

Which should you pick?

Choose Red Hat Enterprise Linux if

  • You need certified ecosystem.
  • You work on Linux, Server, Cloud.
  • You also want commercial support.
Red Hat Enterprise Linux review

Choose Rocky Linux if

  • You need binary compatibility.
  • You want to start without paying.
  • You work on x86-64, ARM64, ppc64le, s390x, Cloud images, Containers.
  • You also want peridot build system.
Rocky Linux review

Questions people ask

Is Red Hat Enterprise Linux or Rocky Linux better?
Neither clearly leads. Red Hat Enterprise Linux starts at On request and Rocky Linux at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Red Hat Enterprise Linux or Rocky Linux?
Rocky Linux has a free tier; the other does not. Paid plans start at On request for Red Hat Enterprise Linux and Free for Rocky Linux.
Does Red Hat Enterprise Linux or Rocky Linux run on more platforms?
Red Hat Enterprise Linux runs on Linux, Server, Cloud. Rocky Linux runs on x86-64, ARM64, ppc64le, s390x, Cloud images, Containers.
Can I use Rocky Linux for free?
Yes. Rocky Linux has a free tier, so you can try it without paying. Red Hat Enterprise Linux starts at On request.
What is Red Hat Enterprise Linux best used for?
Red Hat Enterprise Linux is most often used for regulated industries needing a contracted party accountable for security fixes, applications certified against a specific os that must not move for years, enterprises procuring against hardware and isv certification lists. Of those, regulated industries needing a contracted party accountable for security fixes and applications certified against a specific os that must not move for years are not what Rocky Linux is typically brought in for.
What can Red Hat Enterprise Linux do that Rocky Linux cannot?
Red Hat Enterprise Linux covers Certified ecosystem, Commercial support, SELinux and compliance tooling. Rocky Linux covers Binary compatibility, Peridot build system, migrate2rocky, Secure Boot. Both handle Ten-year lifecycle.

Answered from the vendors’ own pages

Red Hat Enterprise Linux: Is Red Hat Enterprise Linux free?

The software is open source but the product is sold as a per-system subscription. Red Hat offers no-cost developer subscriptions for individual development use.

Rocky Linux: Is Rocky Linux still binary compatible with RHEL after the 2023 source restrictions?

Yes, that remains the stated goal and the reason it takes sources from UBI containers and cloud instances instead of the customer portal. It is a goal maintained by effort, not by agreement, which is the risk you are accepting.

Red Hat Enterprise Linux: What does the subscription actually buy?

Support, security backports over a ten-year lifecycle, and hardware and software certifications. Not the code, which is open.

Rocky Linux: Can I move a CentOS 7 machine to Rocky in place?

Not directly to Rocky 9. The usual path is the ELevate project, which is maintained by AlmaLinux and can upgrade CentOS 7 to Rocky 8, then migrate2rocky and a second major upgrade from there. Many teams rebuild instead.

Red Hat Enterprise Linux: Why do enterprises pay for Linux?

Accountability and lifecycle. A contracted vendor answering for a CVE, and an OS that stays supported long enough to avoid re-certifying applications every two years.

Rocky Linux: What does support cost?

Nothing for the distribution. Commercial support is sold by CIQ under separate contract, and pricing is quoted rather than published.

Rocky Linux: How does it differ from CentOS Stream?

CentOS Stream sits ahead of RHEL and receives changes before they ship in a RHEL release. Rocky sits behind it and reproduces what already shipped, which is what most CentOS users actually wanted.

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