PILLAR 1 - ONE SESSION, THREE WORLDS.
Linux, Ubuntu and Windows - in one session. No Reboots.
Run Linux-native software, Ubuntu packages, and Windows applications side-by-side, without reboots or dual boot.
Get Everything Windows Does
But Without Microsoft
ArmOS supports your Windows software, your Android applications, and a private on-device AI, all on a hardened, secure Linux core protected from the start with post-quantum encryption. Five enterprise security tools, pre-built. No telemetry and licence fees.
Windows app running
Ask ARM Brain anything...
CPU14%
MEMORY38%
MESH PEERS8 online
ARM Brain - ready
Optimized GPU schedule. Blocked 14 telemetry attempts overnight.
CORE FEATURES
What Sets ARMOS Apart?
Compatibility, security, and device unification are all included in ArmOS, a platform intended for the upcoming computing age.
PILLAR 2 - WINDOWS-COMPATIBLE. MICROSOFT-FREE.
Windows-compatible. Microsoft-Free.
ArmOS isn't a fork of Windows. It uses clean-room, open-source tools that are compatible with Windows, including APIs and UX patterns, with no Microsoft code.
PILLAR 3 - ONE FIRMWARE. EVERY DEVICE.
One OS replacing Windows desktop, Windows Server, Android and iOS.
The same OS is used on desktop, laptop, server, tablet, and phone, and it replaces Windows desktop, Windows Server, and your mobile OS with one common foundation.
PILLAR 4 - YOUR DATA IS YOURS.
Peer-to-peer. Post-quantum. Owned by the user.
Peer-to-peer (P2P) and post-quantum secure by default. Every device is a node, all interactions are encrypted, and no aspect of your system's operation relies on another cloud.
PILLAR 5: YOUR COMPUTER IN YOUR POCKET
Unrestricted Portable Computing
Boot the entire ArmOS system from some external media. Connect it to any location, use it like any other device, disconnect it, and leave no footprint on the target machine.
WHY ARMOS
Things ArmOS Can Do That
Other OS Can't
ArmOS provides the foundation and tools required for the future, regardless of whether you are an organization or an individual user.
NO TELEMETRY. EVER.
Privacy Without Compromise
No monitoring, measurement, or gathering of data. Anything that happens on the computer is limited to the computer.
No TelemetryNo CloudP2P NativeLocal DataPrivacy-FirstUser-Controlled
AN ENTIRE COMPUTER ON A DRIVE.
Computer On Demand
Work instantly on any machine using Plug ArmOS. Carry apps, files & setting with you.
00TRACKERS
00ADS
00ACCOUNTS
ARM OFFICE TOOLS WITHOUT SUBSCRIPTION.
Subscription Free Productivity
Use docx, xlsx, and pptx. straight out of the box. Open MS Office files without subscription using ARM Office Suite.
MAKE SOME MONEY WITH YOUR UNUSED DEVICES.
Earn From Hardware
Share CPU, GPU and storage resources if you wish. Earn ARM Tokens without losing control.
FIVE SECURITY PRODUCTS, NO CONFIGURATION.
Security From Startup
App Control, Threat Detection, Encryption, Compliance, and Access Management. Installed and running on the first boot.
WINDOWS COMPATIBILITY
Your Apps & Workflow.
No Windows Needed!
ArmOS comes with several pre-tuned and signed compatibility runtimes. Open a .exe, and ArmOS routes it to the right runtime automatically - no configuration, no winetricks, no manual steps.
APPS TESTED
GAMES VERIFIED
0$ LICENSE FEES
ARM BRAIN
The AI is Yours, Not a Cloud Provider's
Built into ARMOS, rather than bolted on, ARM Brain is designed to be integrated into the end-user's operating system. It works locally, is account-free, and never pushes files, prompts, or activity to a server, either online or offline.
Learn More ARM Brain - local - 0ms cloudllama-3.1-70b - 4090
You · 14:32
Summarize last week's network anomalies, quarantine offenders, and brief me in plain English.
ARM Brain · 14:32
Found 3 outbound flows to unknown ASNs — two from a sandboxed Wine prefix running an outdated PDF reader. Quarantined via Open Snitch, rotated mesh keys, and pinned the prefix for review. Full report saved to ~/security/2026-06-03.md.
Ask anything — files, code, system, the web...⌘K
On-device
Inference is performed on the device. Never the cloud.
Internet independent
ARM Brain works with or without an internet connection.
Semantic Search
Search with simple questions for files, settings, or documents.
Terminal Access for All
ARM Brain explains, suggests, and corrects typos.
Scales with Hardware
Runs full LLMs locally on NVIDIA, AMD, and Intel Arc GPUs.
SETUP FLOW
Let's Get You Started
One platform that runs Windows software, Android apps, native Linux, and a private on-device AI - without the trade-offs.
01
Pillar 01 · Unified runtime
Download
Download ArmOS - cryptographically signed and verifiable. Works on regular 64-bit PCs and ARM64 devices.
02
Pillar 01 · Unified runtime
Boot or Install.
You can run alongside Windows, install as your primary operating system, or boot from USB. Current Windows data stays intact
03
Pillar 01 · Unified runtime
Take Your Apps.
Insert the current drive into the drive bay. ArmOS identifies your current Windows versions and assists you in transferring your files and settings over.
ZERO TRUST SECURITY
Security That Doesn't Get in Your Way
Five enterprise-grade security capabilities combined in one agent that runs from the first boot. No additional installations, no additional subscriptions, no gaps.
App control
Only approved applications are run on your machine. Automatic blocking of unknown software, with instant notification.
Threat detection
As ArmOS monitors all the time for uncommon conduct, it detects ransomware and malicious processes before they can cause harm.
Encrypted storage
Your whole drive will be encrypted when you boot up for the first time with post-quantum cryptography, which is what governments are now using.
Privileged Access Management
Sensitive credentials are stored in a hardware-backed vault, with access controlled. Access is only granted as it is required, and every action is recorded.
Wazuh
XDR & SIEM
OPA
Policy engine
AppArmor
MAC sandboxing
NetBird
Mesh VPN, zero trust
Outbound
app firewall, OpenSnitch.
TPM 2.0
Hardware root of trust
Secure Boot
Verified boot chain
OpenBao
Credential vault & secrets
MLDSA
Post-quantum encryption.
Falco
is a runtime threat detection tool (eBPF)
ARM MOBILE
One OS. Every screen.
Plug into a monitor and keyboard, and your ARM Mobile transforms into a full desktop — all files, all applications, all security — without a second thought. Every mode with one device without a compromise.
CONVERGENCE MODE
Your phone, your Desktop.
One USB-C cable transforms your phone into a full ArmOS workstation — same files, same apps, same AI, same security keys.
Desktop
Up to 4K @ 144Hz
Laptop
x86 & ARM64
Tablet
Up to 4K @ 144Hz
Phone
x86 & ARM64
SET UP AN APP STORE & DEVELOPER PORTAL
Build Once.
Publish Without Gatekeepers.
When it comes to development, ArmOS includes everything you need straight out of the box. An easy route to get your app in the hands of ArmOS users.
Build in Any Language
Native support for JavaScript, Python and Go. You can choose your language - the runtime, tooling and packaging templates are pre-installed on the device for you.
CI/CD Already Put in Place.
Automated builds, tests, and deployment directly to the ArmOS Store via the built-in pipeline (Git + Jenkins).
Direct to Users.
Get straight to ArmOS users with a streamlined review process and no unwanted friction in between you and your users.
One SDK. Every path.
All of the ArmOS SDK templates, code-signing techniques and pipeline are the same for every developer - no matter what language or framework they select.
Run Windows Server, too!
Windows Server is a guest VM running on a built-in KVM hypervisor at near-native performance, for testing, legacy services, enterprise workloads, and without leaving ArmOS.
Native Desktop Apps
Ship using Tauri, Electron, PySide6, Flet, Wails or Fyne. Each framework delivers a correctly signed, package-ready application, with no work of platform-specific packaging necessary.
ARCHITECTURE
Layer Stack
ArmOS is not the creation of a random bunch of people; it's built on the foundations of the most trusted open-source software. Every layer is traceable, removable, and documented.
Learn More
ROADMAP
The Direction That ArmOS is Taking.
A multi-year plan to build the operating system the cloud era forgot.
V 1.0Q3 2026
ShippingPublic Launch
Security, full UESP stack, mesh networking, Windows & Android support, plus Desktop edition.
V 1.0Q1 2027
In devMobile + Convergence
ARM Mobile beta, seamless desktop convergence, full Windows compatibility and the first enterprise activation keys.
V 1.0Q4 2027
PlannedMesh Economy
Distributed resource markets, GPU lending, and federated model training within Local Groups.
V 3.02028+
ResearchOpen Ecosystem
Complete P2P application architecture using a self-hosted enterprise cloud on 100% ArmOS server.
FAQS
Frequently Asked Questions
No. ArmOS uses open-source compatibility tools to run Windows apps. There's no need to buy a licence for Windows or install any Microsoft software.
Disclaimer
Some Windows apps might not be compatible with ArmOS. ArmOS is built with Ubuntu LTS and the Linux 6.x kernel. ArmOS is not a Microsoft product, nor is it endorsed by MS. Features and availability are hardware-dependent.
Get Started
The Future Of Computing Belongs To Its Users.
Join 47,200+ developers and 312 enterprises already building on ArmOS. Free to download. Free forever for personal use.