Linux Statistics 2026: Desktop, Server, Cloud & Community

These Linux statistics quietly tell the story of who runs the world’s most demanding computers. The numbers below compile the current desktop, server, cloud, gaming, mobile, and kernel-development figures. As of May 2026, every system on the Top500 supercomputer list runs Linux, the eighth consecutive year of unanimous Linux dominance since November 2017, the U.S. El Capitan machine leads global supercomputing at 1.742 ExaFLOPS on the LINPACK benchmark, running Red Hat Enterprise Linux at Lawrence Livermore National Laboratory, and Kubernetes, the orchestration layer beneath modern AI workloads, now reports 82% production adoption with 96% of surveyed clusters running on a Linux node OS.

The desktop story stays small, but every other Linux statistics story keeps growing. StatCounter’s April 2026 reading puts Linux at 2.99% of the worldwide desktop market share, yet Steam recorded its first-ever crossing of 5% in March 2026, and the kernel keeps absorbing more corporate engineering effort each release. The Linux statistics below cover desktop and server share, cloud and Kubernetes adoption, Steam gaming, mobile Android, kernel development, and Linux Foundation membership.

Key Takeaways

• Linux holds 2.99% of the worldwide desktop OS share in April 2026 per StatCounter Global Stats, versus 63.66% for Windows.
• 100% of the Top500 supercomputers run Linux for the 8th consecutive year, with four exascale systems on the November 2025 list.
• Kubernetes production adoption climbed to 82% in 2025 (up from 80% in 2024), and 96% of surveyed production clusters run on Linux.
• Linux usage on Steam reached 5.33% in March 2026, a multi-year high above the 5% mark, then normalized to 4.52% in April.
• Linux Foundation reported 71,000+ contributors and 3,000+ member organizations in 2024, with $299.7 million in total expenditure.
• Ubuntu leads developer Linux at 27.8% personal use per the Stack Overflow 2025 Developer Survey of more than 49,000 respondents.
• Kernel 6.15 absorbed 14,612 changesets from 2,068 developers, with 195 distinct employers represented.

Editor’s Choice

• El Capitan at Lawrence Livermore leads the Top500 at 1.742 ExaFLOPS, running Red Hat Enterprise Linux.
• Linux runs 90% of public cloud infrastructure across AWS, Azure, and Google Cloud in 2025.
• Google Cloud reports 91.6% of its total VMs run on Linux as of 2025, with AWS at 83.5% and Microsoft Azure at 61.8%.
• Linux accounts for 61.3% of websites with a known operating system per W3Techs, with Ubuntu alone at 14.9%.
• Android (built on the Linux kernel) holds 67.35% of the global mobile OS share in April 2026, per StatCounter.
• The global application container market reached $5.85 billion in 2024 and is projected at $31.50 billion by 2030.

Recent Developments

• April 28, 2026: Fedora Linux 44 shipped with kernel 6.19.14, featuring GNOME 50 and KDE Plasma 6.6.
• April 23, 2026: Ubuntu 26.04 LTS “Resolute Raccoon” was released as the first LTS to ship with the 7.x kernel series, extending support through April 2031 (or April 2038 with Legacy Support).
• May 2026: Valve’s monthly Steam Hardware Survey recorded Linux at 4.52% of active Steam respondents, down 0.81 points from March’s record 5.33%.
• January 20, 2026: CNCF Annual Cloud Native Survey 2025 reported Kubernetes production use at 82% of respondents, with 1,300 respondents, a 73% increase over the prior panel, anchoring the broader Microsoft 365 statistics enterprise-workload picture.
• March 2026: Steam Linux usage crossed the 5% mark, peaking at 5.33% before retreating to 4.52% in April as Steam Deck stock tightened globally.

Linux Desktop Operating System Market Share

• Linux holds 2.99% of the worldwide desktop OS share in April 2026, per StatCounter Global Stats.
• Windows leads desktops at 63.66%, with Apple platforms (combined OS X 8.19% and macOS 4.37%) at 12.56%.
• The “Unknown” segment captures 19.28% of measured desktop sessions in April 2026, sessions where the browser obscured or blocked the user-agent fingerprint.
• Chrome OS sits at 1.51% of worldwide desktop share, reflecting Chromebook penetration concentrated in education.
• Linux-derived desktop platforms (Linux plus Chrome OS, which is itself Linux-kernel-based) reach roughly 4.5% of worldwide desktop share when both StatCounter line items are summed.
• Industry trackers project Linux server share growth from 44.8% in 2024 to 51.3% by 2026, indicating the desktop-server gap is widening rather than narrowing.

Source: StatCounter Global Stats

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Linux Server Operating System Market Share

• The Unix family (which includes Linux, BSD, Solaris, and AIX) powers 91.6% of websites with an identifiable operating system per W3Techs as of May 18, 2026.
• Windows trails at 8.6% of websites with identifiable OS.
• Within identifiable Linux servers, Ubuntu leads at 14.9%, followed by Debian at 6.2%, CentOS at 1.4%, AlmaLinux at 0.3%, Amazon Linux at 0.2%, and Rocky Linux at 0.2%.
• The “Unknown Linux variant” bucket, 76.5% of Linux web servers, represents installations that don’t fingerprint to a named distribution (typically minimal containers and custom-built images).
• Linux accounted for 44.8% of the global server OS market in 2024 across all workloads (web, application, database, file).

Source: W3Techs

By the numbers: Unix-family operating systems run 91.6% of websites with identifiable OS per W3Techs, with Ubuntu the single largest named Linux distribution at 14.9% and the “Unknown Linux” bucket, minimal containers and custom images that don’t fingerprint, accounting for 76.5% of Linux installations. Linux’s share grows as web infrastructure modernizes around lightweight container images.

Linux on the Top500 Supercomputers

• Every supercomputer on the November 2025 Top500 list runs Linux, the 8th consecutive year of 100% Linux dominance since November 2017.
• El Capitan at Lawrence Livermore National Laboratory tops the list at 1.742 ExaFLOPS on the LINPACK benchmark, running Red Hat Enterprise Linux.
• Frontier follows El Capitan at 1.353 ExaFLOPS.
• Aurora and the JUPITER Booster each exceed 1.000 ExaFLOPS, putting four exascale systems on a single list for the first time.
• JUPITER Booster at the EuroHPC / Jülich Supercomputing Centre measured exactly 1.000 ExaFLOPS, the first European exascale system.
• By country, the United States hosts the most systems at 171, followed by Japan at 43, with Germany and China tied at 40 each.

Linux in Cloud Infrastructure

• Linux controls 90% of public cloud infrastructure across AWS, Azure, and Google Cloud in 2025.
• Google Cloud reports 91.6% of its total VMs run on Linux in 2025.
• AWS EC2 instances are 83.5% Linux-based as of 2025.
• Microsoft Azure reports 61.8% Linux VM usage across active subscriptions in 2025, a striking number for a vendor whose own desktop OS dominates the market.
• Independent measurement of cloud workload-mix data aligns with the hyperscaler-reported Linux share above.
• The Linux story in cloud is more lopsided than the desktop story is small; every major hyperscaler runs more than half its compute fleet on Linux, even when the parent company sells a competing OS.

Linux in Kubernetes and Container Orchestration

• Kubernetes production adoption reached 82% of respondents in the CNCF 2025 Annual Cloud Native Survey, up from 80% in 2024.
• 96% of production Kubernetes clusters surveyed in 2025 run on a Linux node OS.
• Linux powers 78% of all Kubernetes clusters globally and 75% of Docker containers per the CNCF 2024 survey of 750 respondents.
• The 2025 survey panel grew 73% year over year to 1,300 respondents, reflecting cloud-native expansion into AI workloads.
• The global application container market reached $5.85 billion in 2024, projected at $31.50 billion by 2030.
• In the 2024 panel, production Kubernetes use grew at a 20.7% annual rate, with 93% of respondents either in production or actively piloting Kubernetes.

Source: CNCF Annual Cloud Native Survey

Key finding: CNCF reported that production Kubernetes use hit 82% in 2025, with 96% of those clusters running a Linux node OS, establishing Kubernetes as the de facto operating layer for AI workloads. The combination of growing Kubernetes adoption with near-total Linux dependency means every gain in cloud-native AI infrastructure compounds Linux’s server position.

Linux on Steam: Gaming Market Share

• Steam Hardware Survey placed Linux at 4.52% of active respondents in April 2026, with Windows at 93.47% and macOS at 2.01%.
• March 2026 saw Linux cross the 5% threshold on Steam, peaking at 5.33% before normalizing in April.
• The April pullback of 0.81 percentage points coincided with the Steam Deck being out of stock almost globally for the weeks preceding the survey.
• Within Linux Steam users, SteamOS Holo 64-bit leads at 23.05%, down 1.43 points month over month, with Ubuntu 25.10 64-bit at 1.53%, Manjaro Linux 64-bit at 1.42%, and Fedora 43 Workstation 64-bit at 1.43%.
• Among named non-SteamOS distributions in the survey, Arch Linux 64-bit registers at 0.32% of all Steam users, with Linux Mint 22.3 at 0.27% and Ubuntu Core 24 at 0.13%.
• The 5% Steam ceiling-break and the immediate 0.81 pp pullback together tell the cleanest single story about Linux gaming today. The headline number is real, the Steam Deck is the engine, and supply gating dictates the monthly headline.

Android and Mobile Linux Distribution

• Android, built on the Linux kernel, holds 67.35% of the worldwide mobile OS share in April 2026, per StatCounter.
• iOS sits at 32.55% of worldwide mobile share, with Android plus iOS combining to 99.9% of the global mobile OS market.
• KaiOS (also a Linux derivative used on feature phones in emerging markets) registers at 0.01% worldwide.
• Linux-labeled mobile sessions (excluding Android and KaiOS) hold 0.01% of the worldwide mobile share.
• Adding Android, KaiOS, and Linux-labeled mobile sessions yields roughly 67.4% of the global mobile OS market on Linux-kernel derivatives.
• Counting Android as a Linux platform makes Linux the single most-deployed operating system on the planet, even ignoring server fleets, supercomputers, and embedded devices.

Linux Kernel Development Statistics

• Linux kernel 6.15 absorbed 14,612 changesets from 2,068 contributing developers per LWN.net’s published development statistics.
• 262 developers made their first kernel commit during the 6.15 cycle, sustaining newcomer flow into mainline kernel development.
• Intel led corporate contributors by changeset volume at 12.0%, followed by Google 6.7%, Red Hat 6.1%, AMD 6.0%, Linaro 4.4%, SUSE 3.8%, and Meta 3.4%.
• By lines changed, AMD topped corporate contributors at 14.9%, ahead of Intel at 11.1%, Google at 8.0%, IBM at 5.7%, and Red Hat at 5.2%.
• Kent Overstreet led individual contributors with 266 changesets (1.8% of the cycle), followed by Kuninori Morimoto at 191 (1.3%) and Ville Syrjälä at 144 (1.0%).
• 195 distinct employers were represented across the 6.15 development cycle, with 50.2% of commits carrying Reviewed-by tags.

The flip in the lines-changed column. AMD at 14.9% versus Intel at 11.1% is a quiet inflection. The GPU vendor outpacing the CPU vendor on raw kernel lines reflects the shift of kernel engineering effort toward graphics, accelerators, and AI-adjacent subsystems.

Linux Foundation Membership and Projects

• Linux Foundation 2024 Annual Report reported more than 71,000 contributors across LF projects.
• LF’s membership ecosystem spans more than 3,000 organizations across industry verticals.
• Eleven new projects were added to the foundation in 2024, and projects welcomed over 7,500 new contributors during the year.
• LF total 2024 expenditure reached $299.7 million, up from $269 million in 2023.
• Member donations and contributions were the largest revenue source at $125.1 million (43% of total revenue), with membership dues adding $133 million (42.7%), project services $83 million (26.7%), and events $58 million (18.6%).

Source: Linux Foundation Annual Report

Top Linux Distributions Among Developers

• Stack Overflow 2025 Developer Survey of more than 49,000 respondents from 177 countries placed Ubuntu at 27.8% for personal projects and 27.7% for professional work.
• Android passed Ubuntu for personal use at 29% versus Ubuntu’s 28%. Android is ahead of Ubuntu for the first time in the survey, up 11 percentage points year over year.
• Debian sits at 11.4% personal use and 10.4% professional use.
• Arch Linux holds 8.0% developer adoption, with Debian at 9.8% behind Ubuntu in the headline distribution ranking.
• Linux overall reaches 78.5% of developers globally as a primary or secondary operating system.
• Android crossing Ubuntu for the first time in a developer survey is the strongest single signal of how broadly mobile development now overlaps with general-purpose Linux work.

Linux in Embedded Systems and IoT

• Android’s 67.35% share of worldwide mobile OS in April 2026 places the Linux kernel inside roughly two-thirds of smartphones globally, beyond traditional embedded workloads.
• KaiOS, a Linux-kernel derivative powering many low-cost feature phones in emerging markets, registers 0.01% of worldwide mobile share in April 2026 but ships on tens of millions of devices annually that lack web-tracking telemetry.
• Linux Foundation projects expanded by 11 new initiatives in 2024, several focused on edge, automotive, and connected-device workloads (Zephyr, OpenChain, AGL).
• The IoT deployment data documents the same kernel-level Linux dominance across industrial control systems, wearables, and connected appliances.
• Linux statistics for embedded gaming form a separate cohort; the Steam statistics breakdown for handheld PCs sits at 48% Steam Deck share of the handheld category, almost entirely Linux.
• Embedded Linux is the part of the ecosystem that’s hardest to count; there is no equivalent to StatCounter for routers, smart speakers, point-of-sale terminals, or in-vehicle infotainment systems, but it is in all of them.

Linux Statistics for Web Server Distributions

• Linux runs 61.3% of websites with a known operating system per W3Techs as of May 18, 2026.
• Ubuntu leads named Linux web-server distributions at 14.9%, followed by Debian at 6.2%, CentOS at 1.4%, AlmaLinux at 0.3%, Rocky Linux at 0.2%, and Amazon Linux at 0.2%.
• The “Unknown Linux variant” category dominates at 76.5% of Linux web installations, typically containerized stacks and custom-built images, mirroring the pattern in broader cybersecurity statistics, container-OS data.
• Red Hat, CloudLinux, and Gentoo each sit below 0.1% of the identifiable Linux web-server share.
• W3Techs’s broader survey aggregates Linux under the Unix family at 91.6% of websites with identifiable OS; the BSD, Solaris, and AIX contributions to that figure are minor.

Why it matters: W3Techs reports a 76.5% “Unknown Linux variant” share, installations that don’t fingerprint to a named distribution under its detection methodology, so the named-distro share understates Linux’s true web-server footprint.

Conclusion

Linux’s current position is asymmetric across surfaces: a stable 2.99% of worldwide desktops, 4.52% of Steam, but 90% of public cloud, 96% of production Kubernetes clusters, and 100% of the Top500. The strongest growth signals. Steam crossing 5%, the first European exascale system, the first LTS on a 7.x kernel, AMD overtaking Intel in kernel lines changed, all sit inside the surfaces where Linux is already dominant, rather than the surfaces where it is small.

The desktop story will keep being small, and that’s fine; every other measurement of the broader Linux ecosystem keeps compounding, with AI infrastructure now anchored to Kubernetes and Kubernetes anchored to Linux. Expect the next CNCF panel to push production Kubernetes adoption past 85%, the next Top500 list (June 2026) to add a fifth exascale system, and Ubuntu’s kernel-7 LTS to seed the next round of cloud and supercomputer deployments through late 2027.