Best Oracle Solaris Alternatives in 2026
The top Oracle Solaris alternatives are Ubuntu Server, Debian and AlmaLinux OS: 15 server operating system our editors would look at instead of Oracle Solaris, in our ranking order.
Oracle Solaris: A long-supported Unix option for enterprises maintaining Solaris applications and systems. Where it falls short: support and licensing on non-oracle x86 hardware require a paid subscription.
Switching from Oracle Solaris? For most server operating system buyers the best Oracle Solaris alternative is Ubuntu Server, built for broad server deployments needing low-cost enterprise Linux.
Why People Look for an Oracle Solaris Alternative
- Support and licensing on non-Oracle x86 hardware require a paid subscription
- Its focus on Solaris estates makes it less broadly applicable than mainstream Linux
- Advanced system management may require Solaris expertise
Quick Picks by What You Need
- Best overallUbuntu Server9.4
Broad server deployments needing low-cost enterprise Linux
Visit Ubuntu Server - Best free optionUbuntu Server9.4
Has a free plan
Visit Ubuntu Server
All 15 Oracle Solaris Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forBroad server deployments needing low-cost enterprise Linux
- Better than Oracle Solaris:
- Editor score 9.4 vs 8.5
Free, multi-architecture Linux with five years of LTS maintenance and optional Pro services.
9.4/10★★★★★Visit Ubuntu Server -
Best forStable, broadly compatible general-purpose servers
- Better than Oracle Solaris:
- Editor score 9.3 vs 8.5
A stable, broadly compatible server OS with APT, security updates and cloud images.
9.3/10★★★★★Visit Debian -
Best forRHEL-compatible enterprise servers without license fees
- Better than Oracle Solaris:
- Editor score 9.2 vs 8.5
A free RHEL-compatible Linux distribution for servers, cloud, containers and more.
9.2/10★★★★★Visit AlmaLinux OS -
Best forEnterprises needing supported, managed Linux infrastructure
- Better than Oracle Solaris:
- Editor score 9.1 vs 8.5
A supported Linux server OS with live patching, rollback, and multi-cloud deployment.
9.1/10★★★★★Visit SUSE -
Best forFree RHEL-compatible servers across cloud and edge
- Better than Oracle Solaris:
- Editor score 9.0 vs 8.5
A free, RHEL-compatible Linux OS with deployment images for servers, cloud, and edge.
9.0/10★★★★☆Visit Rocky Linux -
Best forAWS-native EC2 and container workloads
- Better than Oracle Solaris:
- Editor score 8.9 vs 8.5
A free, AWS-focused Linux distribution with controlled updates and EC2 and container images.
8.9/10★★★★☆Visit AWS -
Best forRHEL-adjacent systems tracking upstream development
- Better than Oracle Solaris:
- Editor score 8.8 vs 8.5
A free RHEL-adjacent server OS for teams that want to follow upstream development.
8.8/10★★★★☆Visit CentOS Stream -
Best forAutomatically updated container-focused servers
- Better than Oracle Solaris:
- Editor score 8.7 vs 8.5
A free, container-focused server OS with automatic updates and Ignition configuration.
8.7/10★★★★☆Visit Fedora CoreOS -
Best forMinimal, security-conscious servers and containers
- Better than Oracle Solaris:
- Editor score 8.6 vs 8.5
A portable, minimal Linux base for servers and containers, with stable and edge branches.
8.6/10★★★★☆Visit Alpine Linux -
Best forOrganizations running enterprise workloads on IBM Power
AIX pairs enterprise workload capabilities with a focus on IBM Power hardware.
8.4/10★★★★☆Visit IBM AIX -
Best forHighly portable Unix deployments and unusual hardware
A portable Unix-like system with broad architecture support and flexible package management.
8.3/10★★★★☆Visit NetBSD -
Best forReproducible, declarative Linux development environments
Nix makes isolated, declarative builds and reproducible project environments available for free.
8.2/10★★★★☆Visit Nix -
Best forEdge and container systems needing support
A rollback-capable, container-focused Linux OS for self-hosted edge environments.
- Commercial support
- Long-term support
- Container tooling
8.1/10★★★★☆Visit SUSE -
Best forOracle Linux KVM virtualization administrators
A self-hosted control plane for managing Oracle Linux KVM virtualization at scale.
7.9/10★★★★☆Visit Oracle -
Best forOrganizations maintaining legacy HP enterprise servers
A server OS for organizations maintaining existing HP 9000 and Integrity estates.
7.9/10★★★★☆Visit HPE
Oracle Solaris Alternatives: Common Questions
What is the best alternative to Oracle Solaris?
Ubuntu Server: #1 in our Server Operating System ranking, with an editor score of 9.4 out of 10. Free, multi-architecture Linux with five years of LTS maintenance and optional Pro services.
Is there a free alternative to Oracle Solaris?
Yes. Ubuntu Server, Debian, AlmaLinux OS, Rocky Linux and Amazon Linux have a free plan or a free tier (12 of the 15 alternatives on this page).
Why do people look for Oracle Solaris alternatives?
Support and licensing on non-Oracle x86 hardware require a paid subscription; Its focus on Solaris estates makes it less broadly applicable than mainstream Linux; Advanced system management may require Solaris expertise.
How do I switch from Oracle Solaris?
Snapshot or back up the data and configs on your Oracle Solaris server. Create the new server with the same operating system and size, and add your SSH key. Copy the data across (rsync or your backup tool) and reinstall your apps or containers. Move the DNS records or IP references to the new server, test it, then cancel Oracle Solaris.
How to Switch from Oracle Solaris
- Snapshot or back up the data and configs on your Oracle Solaris server.
- Create the new server with the same operating system and size, and add your SSH key.
- Copy the data across (rsync or your backup tool) and reinstall your apps or containers.
- Move the DNS records or IP references to the new server, test it, then cancel Oracle Solaris.
Oracle Solaris vs Each Alternative
| # | Tool | Free plan | Paid from | Score |
|---|---|---|---|---|
| 10 | Oracle Solaris | Yes | 8.5 | |
| 1 | Ubuntu Server | Yes | $25/device/yr | 9.4 |
| 2 | Debian | Yes | Free | 9.3 |
| 3 | AlmaLinux OS | Yes | Free | 9.2 |
| 4 | SUSE Linux Enterprise Server | No | $54/unit/yr | 9.1 |
| 5 | Rocky Linux | Yes | Free | 9.0 |
| 6 | Amazon Linux | Yes | Free | 8.9 |
| 7 | CentOS Stream | Yes | Free | 8.8 |
| 8 | Fedora CoreOS | Yes | Free | 8.7 |
| 9 | Alpine Linux | Yes | Free | 8.6 |
| 10 | IBM AIX | No | 8.4 | |
| 11 | NetBSD | Yes | Free | 8.3 |
| 12 | Nix | Yes | Free | 8.2 |
| 13 | SUSE Linux Micro | Yes | 8.1 | |
| 14 | Oracle Linux Virtualization Manager | Free | 7.9 | |
| 15 | HP-UX | 7.9 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update