How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- Rocky Linux and AlmaLinux are the drop in heirs: RHEL compatible, community governed and free, with commercial support available.
- Oracle Linux is the same compatibility play with an enterprise vendor and its own kernel option behind it.
- Debian offers the longest calm: a huge community, no vendor, and release cycles that never surprise you.
- Ubuntu Server trades purity for convenience, with the widest cloud and documentation footprint.
- Anything still on CentOS Linux 7 or 8 is unpatched today; the migration is the security work, not an upgrade project.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Rocky Linux | Drop in RHEL compatible replacement | Free | Yes |
 AlmaLinux | RHEL compatible with fast security response | Free | Yes |
 Oracle Linux | RHEL compatibility with vendor support | Free | Yes |
 Debian | Stable community Linux with no vendor | Free | Yes |
 Ubuntu Server | Cloud friendly Linux with the widest docs | Free | Yes |
 Amazon Linux 2023 | Linux tuned for AWS workloads | Free | Yes |
 openSUSE Leap | Stable release sharing SLES code | Free | Yes |
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The best CentOS alternatives in 2026
Starting priceFree
Free planYes
Rocky Linux is the heir most CentOS estates chose. It was founded by Gregory Kurtzer, who started the original CentOS project, with the explicit aim of restoring what CentOS Linux was: a free, community governed rebuild of Red Hat Enterprise Linux that tracks it release for release. In practice that means your kickstart files, your Ansible roles and your team's muscle memory all survive the move.
Migration tooling converts CentOS and other RHEL family systems in place, and the ten year support horizon per major version restores the planning calm CentOS admins used to have. Paid support exists through partners such as CIQ for organisations whose auditors want a contract. If your question is simply "what do we run instead", Rocky is the default answer this list measures the others against.
What we like- Bug for bug compatible target with RHEL, so CentOS migrations are mostly upgrades, founded by a CentOS co founder and governed by a foundation, ten year lifecycle per major release matches the old CentOS promise, commercial support is available from CIQ and others if you need a contract
Watch out for- No single vendor throat to choke, support is a separate purchase, package and tooling familiarity assumes a RHEL shaped estate, smaller enterprise reference base than RHEL itself
Starting priceFree
Free planYes
AlmaLinux runs beside Rocky in almost every comparison, and the honest differences are governance detail and temperament. Backed originally by CloudLinux and now run by the AlmaLinux OS Foundation, it commits to compatibility with RHEL at the interface level and has built a reputation for shipping security updates quickly, sometimes ahead of the field.
Its support story runs through TuxCare, which sells support and extended lifecycle services for AlmaLinux estates, including for versions the community has retired. Choosing between Alma and Rocky is rarely technical; both convert a CentOS server cleanly. Teams usually decide on the foundation model they prefer and the partner they would rather call, and either decision is defensible.
What we like- RHEL compatible and governed by a non profit foundation, known for fast errata and update turnaround, migration scripts convert CentOS systems in place, commercial support and hardening services available from TuxCare
Watch out for- Tracks RHEL's ABI rather than promising identical bugs, a subtle distinction, support is bought from partners, not from the foundation itself, like Rocky, its enterprise footprint is still growing
#3
Oracle Linux
Best for: RHEL compatibility with vendor support
Visit oracle.com
Starting priceFree
Free planYes
Oracle Linux is the corporate route to the same destination: a RHEL compatible distribution, free to run, with a large vendor selling support behind it. For organisations that need a contract with a household name and already run Oracle databases or Oracle Cloud, it can be the path of least internal resistance, and its conversion script moves CentOS systems directly.
The two cautions are temperament and trajectory. Oracle's kernel option, the UEK, is technically strong and deliberately different, which matters if your software is certified against the RHEL kernel specifically. And Oracle's commercial gravity pulls toward its own cloud and stack. The distribution itself is legitimately free; go in clear eyed about the landlord.
What we like- Free to download and use, with binary compatibility with RHEL, backed by Oracle, with paid support contracts for enterprises, offers its own Unbreakable Enterprise Kernel as an option, conversion tooling from CentOS is published by Oracle itself
Watch out for- The vendor is Oracle, whose licensing reputation makes some teams cautious, the UEK kernel diverges from the RHEL kernel by design, Oracle pushes its own cloud and database story hard
Starting priceFree
Free planYes
Debian is the alternative for teams whose CentOS wound was about trust: Red Hat changed the deal, and they would rather answer to a constitution than a company. Debian is governed by its developers under a social contract, releases roughly every two years, and keeps a stable release almost eerily unchanged except for security fixes, which is exactly what a server wants.
The cost is the crossing. Apt instead of dnf, different configuration habits, and application stacks that need retesting: this is a migration project measured in weeks for an estate, not an afternoon conversion. Teams that make it rarely look back, because Debian's calm compounds. Teams mid crisis should take the Rocky bridge now and consider Debian at the next hardware refresh.
What we like- Run entirely by a community project, with no company able to change its direction, release stability is legendary, packages change only for security in a release, enormous package archive and architecture support, five years of support per release including the volunteer LTS phase
Watch out for- A real migration from CentOS: different package manager, paths and habits, release versions are conservative, so newer software needs backports or patience, no commercial vendor to buy support from, though consultancies exist
#5
Ubuntu Server
Best for: Cloud friendly Linux with the widest docs
Visit ubuntu.com
Starting priceFree
Free planYes
Ubuntu Server is the convenience choice. Its LTS releases arrive every two years with five years of support, every cloud sells optimised images, and almost any server task you can name has a current Ubuntu tutorial written for it. For teams hiring juniors or building on public cloud, that documentation gravity is a real operational advantage.
Purists note the steering: Canonical makes product decisions, such as the snap packaging system, that the community lives with rather than chooses. And like Debian, Ubuntu is a migration, not a conversion, from CentOS. Ubuntu Pro, free for a handful of machines and paid beyond, extends security maintenance to a decade and is worth pricing if your estate is long lived.
What we like- The most documented server Linux on earth, which speeds up every search, five years of standard support on LTS releases, ten with Ubuntu Pro, first class images on every cloud and strong container support, Ubuntu Pro adds kernel live patching and extended security maintenance
Watch out for- Canonical steers it commercially, and snap packaging divides opinion, another real migration from the RHEL family, like Debian, the free tier of Pro covers only a few machines before it bills
Starting priceFree
Free planYes
Amazon Linux 2023 is the answer inside one question: what should our EC2 instances run? It is tuned for the platform, integrated with its agents and patching services, and maintained on a published cadence with five years of support. For an estate that is moving from CentOS on premises to AWS anyway, adopting it during the move removes one translation layer.
Outside AWS it has little to say. The package set is leaner, the community smaller, and the whole design assumes the surrounding platform. That is not a flaw; it is a scope. Choose it as part of an AWS decision, not as a general CentOS successor for a mixed estate.
What we like- Built and supported by AWS for EC2, with optimised images and agents, five year support promise per release with a predictable cadence, deep integration with AWS tooling, patching and instance tooling, no charge beyond the instances it runs on
Watch out for- It belongs to AWS
- Off cloud use is not the point, smaller package ecosystem than Debian or the RHEL family, major versions are new builds rather than in place upgrades
Starting priceFree
Free planYes
openSUSE Leap is the quiet professional on this list. It is built from the same sources as SUSE Linux Enterprise, so a Leap estate is running enterprise code with community support, and a support contract later means moving to SLES rather than migrating again. YaST, its administration suite, still does centralised configuration jobs that RHEL family admins handle with five separate tools.
Its costs are familiarity and geography. In the US market fewer engineers arrive knowing it, and some application vendors certify for RHEL and Ubuntu first. For a team comfortable being slightly off the main road, Leap offers an enterprise grade free distribution with an honest upgrade path, which is more than CentOS offers anyone now.
What we like- Shares its code base with SUSE Linux Enterprise, a real enterprise distribution, YaST gives centralised administration tooling the RHEL family lacks, strong in European enterprises and education, free, with a community that supports long lived installs
Watch out for- Smaller mindshare in the US market and a smaller hiring pool, another migration path, with zypper and different tooling habits, release cadence and version story have shifted in recent years
How we chose
Eligibility required a server distribution a CentOS estate could realistically adopt in 2026, with a published support lifecycle of five years or more and an active release today. RHEL family rebuilds were judged on compatibility and governance; the others on what repays a real migration: community size, documentation, cloud presence or platform fit. All seven are free to download and run. The differences that matter are support contracts and your team's time, and each entry prices those honestly instead of pretending the software cost is the whole story.
Where CentOS Stream and RHEL fit in this decision
Two names were deliberately not given entries, and both deserve a sentence. CentOS Stream is a legitimate choice for development environments and for teams happy to run slightly ahead of RHEL; it is not the stable production platform CentOS Linux was, because Red Hat redesigned it not to be. If your workloads tolerate that, Stream costs nothing and keeps the family tooling.
RHEL itself is the other honest option. It is the product the rebuilds rebuild, with the vendor's own support, certifications and ten year lifecycle, at subscription prices that are real money for a large estate. Organisations with software certified only on RHEL, or auditors who want Red Hat on the contract, should price it directly rather than treating the free rebuilds as the only grown up answer.
Whatever you choose, treat the calendar as the risk. Every month on an end of life CentOS is a month of unpatched exposure with public exploit code available for the holes. A weekend conversion to Rocky or Alma now beats a perfect Debian migration planned for next spring.
Frequently asked questions
Is CentOS really finished?
CentOS Linux is. Version 8 ended in December 2021 and version 7 in June 2024, and neither receives security updates now. CentOS Stream continues as a separate, rolling distribution that previews future RHEL releases. Software still running CentOS Linux should be treated as unpatched and scheduled for migration.
Which alternative is the easiest migration from CentOS?
Rocky Linux or AlmaLinux, using their published migration scripts, which convert a running CentOS system in place to the equivalent release. The applications, configurations and admin habits carry over, because both distributions target RHEL compatibility. Plan a snapshot and a quiet weekend per estate, not a rebuild project.
Are Rocky Linux and AlmaLinux really free for business use?
Yes. Both are free to download, run and use commercially, governed by non profit foundations. What costs money is optional: support contracts and extended lifecycle services from partners such as CIQ for Rocky and TuxCare for AlmaLinux, bought by organisations that want a vendor to call.
Should I just pay for RHEL?
If your applications are certified only on RHEL, your industry audits vendor support, or your estate is large enough that subscription costs less than migration effort, yes, RHEL is a rational purchase and the reference platform for the whole family. Many estates find the free rebuilds meet the same audits with a partner support contract for less.
How long will my chosen alternative be supported?
Rocky and AlmaLinux target about ten years per major release, matching RHEL. Debian gives roughly five years including its LTS phase. Ubuntu LTS offers five years standard, ten with Ubuntu Pro. Amazon Linux 2023 promises five years. Check the exact dates for your release before you standardise, and write the next migration year into the plan now.
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We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.