What is Linux?
Linux is a free, fast, secure, and private alternative to Windows. It powers most of the internet, the world’s supercomputers, Android phones, and millions of desktops. Best of all — it’s completely free, has no spy- or bloatware, and gives you full control of your computer.
On this page:
A Marvel of Global Goodwill
In 1991, a 21-year-old Finnish university student named Linus Torvalds posted this on the comp.os.minix newsgroup:
“I’m doing a (free) operating system (just a hobby, won’t be big and professional like GNU)…”
His modest announcement — and the immediate release of the source code — sparked a global community almost overnight. Programmers from around the world jumped in, contributing code, fixes, drivers, and ideas.
What began as a hobby quickly became a powerful movement for free software, user sovereignty, and open collaboration — an escape from the closed, proprietary worlds of Windows and commercial Unix.
That small project evolved into the Linux kernel, which now powers the vast majority of the world’s computing infrastructure. It runs on more devices than any other operating system in history: from the fastest supercomputers to smartphones, cloud servers, routers, cars, and TVs.
What makes Linux uniquely powerful is its license: the GNU General Public License (GPL), known as copyleft. Unlike traditional copyright (“all rights reserved”), copyleft uses copyright law to keep software free. Anyone can use, study, modify, and distribute the code — but any modifications must be released under the same license.
This simple rule created a virtuous cycle. Contributions from IBM, Red Hat, Intel, Google, Huawei, and thousands of individual developers flow back into the common pool instead of disappearing into private products. The result is the largest and most sustained collaborative project in human history: tens of thousands of developers, millions of lines of code, and decades of continuous improvement, protected from ever being locked away.
Why haven't I heard of Linux?
Linux has quietly become one of the most successful pieces of software ever created — powering the vast majority of the internet, supercomputers, smartphones (Android), and more. On the desktop, it’s also making real strides: modern Linux interfaces are polished, highly customizable, and often more intuitive and enjoyable than Windows or macOS. Yet, to many people, Linux remains obscure or unknown.
Why isn’t it more widely known and used on everyday computers?
- No big marketing machine: Unlike Windows or macOS, Linux has no single company pouring billions into ads, celebrity campaigns, or sweetheart deals with PC manufacturers. It’s built by a global community of volunteers and companies working together. That same open, decentralized nature (no single point of failure) is one of Linux’s greatest strengths — but it also means no unified advertising push.
- Historical pushback and technical barriers: In the early days, Microsoft actively fought Linux adoption, famously calling it a “cancer” and pressuring hardware makers to favor Windows-only machines. This made it harder to buy a PC with Linux pre-installed. Microsoft was also instrumental in adding a "Secure Boot" setting to the BIOS. While touted as a security feature, it in fact prevents any non-Windows operating system from running on a computer. "Secure Boot" can easily be disabled, but it adds an extra step.
- Default inertia: From consumers who get Windows pre-loaded on their PCs to corporations locked into Microsoft ecosystems through contracts, certifications, and lobbying influence — the path of least resistance usually wins. A myth that “Linux is only for experts” persists, even as distributions like Linux Mint, Zorin OS, and Pop!_OS feel familiar and welcoming out of the box.
Bottom line: Linux stayed under the radar because it evolved organically to meet the needs of a global community, not a corporate roadmap. Free from marketing blitzes, hardware lock-in, and profit-driven haste, it matured into something genuinely better — more secure, more efficient, and remarkably stable. More people discover it every day.
How Distros Are Made
All Linux systems share the same rock-solid heart: the Linux kernel. Think of the kernel as the engine of a car — it’s the core part that makes everything run smoothly and reliably.
On top of this engine, thousands of independent developers create the pieces you actually see and use — things like:
- Programs and apps — web browsers, office suites, photo editors, music players, etc.
- Beautiful desktop interfaces — the visual look and feel you interact with
- Handy tools and settings that run quietly in the background
When you take your favorite pieces, combine them and release a complete, ready-to-use Operating System (just like Windows) its called a distribution, or “distro”.
Who creates distros?
- Companies — such as Canonical and Red Hat
examples: Ubuntu (Canonical) and Red Hat Enterprise Linux / Fedora (Red Hat) - Volunteer communities — large teams of enthusiasts working together
examples: Debian and Arch Linux - Small independent teams — passionate developers building specialized versions
examples: Linux Mint, Manjaro, Puppy Linux, and Tiny Core Linux
Derivative Distributions
Since everything is open source, anyone can use anyone else's software. Most distros are not created from scratch, but are instead based on other, pre-existing distros. Why reinvent the wheel when excellent distros exist, and you are free to improve them?
A distro that is based on another distro, is a derivative of that distro. This is not important if you want to check emails or watch a video. However, if you get deeper into it, its interesting and useful to understand that Mint is based on Ubuntu, and Ubuntu is based on Debian.
What you end up with is not a single operating system - not a cube with a Windows logo on it - but rather a tree that evolves over time. Everything grows from the Linux kernel.
This vibrant ecosystem runs on friendly competition and collaboration. Developers are motivated not by profit or strict deadlines, but by the joy of creating software that millions of people will love and use every day. The result is continuous improvement, excellent choices for users, and an extraordinary level of freedom.
Linux as a Windows Alternative
For most people, Linux can be a smooth drop-in replacement for Windows. Once you find the apps you like and set it up, it tends to stay fast, stable, and trouble-free for many years.
At the same time, Linux is more than just an operating system — it’s a philosophy and a global community. It gives you real choice and freedom. You don’t have to dive deep into it… but you can if you want to. Many users start simple and gradually explore more over time.
Top Beginner-Friendly Distros
The following are among the most popular and approachable distros in 2026. You can try any of these with a minimum of fuss, completely free and without risk.
- Linux Mint — Best overall for Windows users. Familiar interface, very stable, and lightweight.
- Zorin OS — Modern and customizable, with one-click styles that can mimic Windows or macOS.
- Ubuntu — Most popular and well-supported, with excellent hardware compatibility.
- Pop!_OS — Great for gaming and newer hardware, especially NVIDIA graphics.
- Fedora — Modern and up-to-date, ideal for newer computers.
- Elementary OS — Clean and elegant, designed to feel like macOS.
- Manjaro — Beautiful, user-friendly, and always has the latest software.
A distro is just your starting point. Linux is extremely modular — you can add, remove, or change almost anything. With enough customization, one distro can be made to look and behave very much like another.
- CachyOS — blazing performance & gaming
- Debian — ultimate long-term stability
All distros are completely free and quick to download. You can try any via a Live USB, without losing your files.
Desktop Environments — Change the Look & Feel
One of the coolest things about Linux is that you can completely change how your desktop looks and works — without changing your distribution.
A desktop environment is the graphical interface (taskbar, menus, windows, icons, etc.). You can swap it like changing the skin on your phone.
Here are the most popular ones:
- Cinnamon (default in Linux Mint) — Most Windows-like. Familiar start menu, taskbar, and system tray. Excellent for beginners.
- GNOME (default in Ubuntu, Fedora, Pop!_OS) — Modern, gesture-friendly, and clean. Great for touchscreen and keyboard workflows.
- KDE Plasma — Extremely customizable. Can look like Windows, macOS, or something completely unique. Very powerful.
- COSMIC (new in Pop!_OS) — Fresh, modern, and highly polished. Designed for productivity and beauty.
- XFCE / LXQt — Lightweight and fast. Perfect for older computers or people who want maximum speed.
Most distros let you install multiple desktop environments and choose which one to use at login. This is why one distro can feel very different from another even though they share the same core.
What About My Windows Programs and Compatibility?
Important note: Windows programs do not run natively on Linux. You generally have two options:
- A native Linux version of the program (if it exists)
- A free, high-quality alternative built for Linux (often with several excellent choices)
The good news is that 99% of everyday tasks are very well covered —usually with modern, free software that doesn’t require subscriptions.
Common Replacements
- Microsoft Office → LibreOffice (very good compatibility with Word, Excel, PowerPoint files)
- Adobe Photoshop → GIMP or Krita
- Outlook → Thunderbird
- Windows Media Player → VLC Media Player (plays everything)
- Chrome / Edge → Firefox (recommended) or Chrome
- OneDrive / Dropbox → Official Dropbox client or strong open-source tools
- Adobe Acrobat → LibreOffice or PDFsam
- QuickBooks → Manager.io or GnuCash
- Zoom → Official Linux version
- Microsoft Teams → Works very well as a web app (PWA) in Firefox or Chrome
- Visual Studio Code → Native Linux version
Popular apps like Spotify, Steam, Discord, Netflix, Slack, WhatsApp, and many others have excellent native Linux versions.
Other Important Compatibility Points
- File compatibility: Most common file formats (documents, photos, videos, PDFs, etc.) open and work perfectly across Windows and Linux. LibreOffice handles Microsoft Office files very reliably for everyday use.
- Web-based services: Anything that runs in a browser (Google Docs, Gmail, banking sites, Microsoft 365 web version, etc.) works exactly the same on Linux as it does on Windows.
- Printers and peripherals: Most modern printers and scanners work automatically thanks to the Linux printing system (CUPS). Plug in the device and it usually “just works.” Older or very cheap printers may need a quick driver install, but the vast majority are well supported. Wi-Fi, Bluetooth, webcams, and external drives also generally work without issues.
- Heroic Games Launcher — Easy access to Epic Games Store, GOG, and Amazon Prime Gaming.
- Lutris — Powerful tool for managing games from almost any source (including older titles and emulators).
- Native Linux games are growing fast — everything from indie gems to major releases like Counter-Strike 2, Dota 2, and many strategy/sim games.
Looking for more alternatives? AlternativeTo.net is an outstanding website to find Linux replacements for almost any Windows or Mac program.
Gaming on Linux
Modern gaming on Linux is excellent — and getting better every year. Thanks to Valve’s huge investment (and the massive success of the Steam Deck), Linux has become a legitimate first-class gaming platform.
The centerpiece is Steam, which runs natively and beautifully on Linux. With Proton (Valve’s compatibility layer), thousands of Windows games “just work” with near-native performance — often with zero tweaking. Many big titles, including AAA games, now run flawlessly. You can check compatibility at ProtonDB.com, where the community rates games from “Platinum” (works perfectly) to “Gold,” “Silver,” etc.
Popular gaming distros like Pop!_OS, Nobara, and CachyOS come with everything pre-tuned for gaming (graphics drivers, Proton-GE, etc.), so you can install Steam and start playing right away. No more dual-booting just for games.
Beyond Steam, you’ve got great options:
A few caveats for complete honesty: Some online multiplayer games with kernel-level anti-cheat (e.g., certain competitive titles) still have limited or no support. However, support is improving rapidly as more publishers add Proton compatibility. For single-player and most co-op games, you’re golden.
Bottom line: If gaming is a big part of your life, Linux is no longer a compromise. Many people now game exclusively on Linux and report smoother performance, fewer background processes, and better system stability than on Windows.
Ready to see it for yourself?