Q4OS is a Debian-based desktop Linux distribution offering a choice of a classic-style user interface (Trinity) and a modern desktop environment (KDE Plasma). The project also develops various utilities, such as Desktop Profiler and Software Center, as well as installers for third-party applications.
To compare the software in this project to the software available in other distributions, please see our Compare Packages page.
Notes: In case where multiple versions of a package are shipped with a distribution, only the default version appears in the table. For indication about the GNOME version, please check the "nautilus" and "gnome-shell" packages. The Apache web server is listed as "httpd" and the Linux kernel is listed as "linux". The KDE desktop is represented by the "plasma-desktop" package and the Xfce desktop by the "xfdesktop" package.
Colour scheme:green text = latest stable version, red text = development or beta version. The function determining beta versions is not 100% reliable due to a wide variety of versioning schemes.
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As I was looking for the perfect Debian+KDE recipe, I was pleasantly surprised by Q4OS.
I tested it on two old laptops (Ivy Bridge and Haswell), and it's been working very well for two weeks.
What I really appreciated :
- Full hardware and Flatpak support OOTB.
- The lightness, responsiveness and stability of the system (not surprisingly since it is a Debian).
- The possibility to choose between a complete, basic or minimal installation (in terms of applications).
- The implementation of Plasma DE is very successful.
Frankly, I have not yet found any flaws in this distro and I have not encountered any bugs or errors. Undeniably thanks to its simplicity and reliable base.
Version: 7.0-r5 Rating: 10 Date: 2026-06-01 Country: United States Votes: 7
I've been using the Windows .exe version of Q4OS for years, but recently I got handed a real challenge: an ancient Gateway laptop with 4 GB of RAM, a 1.2 GHz processor, and an SSD. I tried six different Linux distributions, each promising to breathe new life into old hardware. Most were either sluggish, incomplete, or required too much tinkering.
Out of sheer desperation, I downloaded the Q4OS ISO and gave it a shot.
The installation took a while—longer than most modern distros—but it was surprisingly efficient. No drama, no cryptic errors, no hunting down missing drivers. Just a methodical install process doing its thing.
Then came the payoff.
A fully functional desktop. Network access working immediately through a USB-tethered phone. Everything responsive. Everything where it should be. No wrestling with configuration files, no post-install scavenger hunt.
As a quick test, I fired up the famous Costa Rica 4K nature video on YouTube. Obviously this old machine isn't pushing native 4K, but Q4OS handled playback smoothly at 720p, which honestly surprised me given the hardware. That's the sort of real-world performance that matters on a system of this vintage.
I won't get wordy about it: it just works.
What impressed me most is that Q4OS doesn't feel like a compromise. It runs comfortably on older hardware while still looking clean and polished. It respects limited resources without looking like a relic from 2005.
In a Linux world full of flashy newcomers and heavyweight desktop environments, Q4OS quietly gets the job done. If you've got aging hardware gathering dust and you're starting to think it's beyond saving, give Q4OS a serious look.
Sometimes the best distro isn't the newest or the most popular—it's the one that simply works.
Version: 6.8 Rating: 10 Date: 2026-05-27 Country: United States Votes: 7
On 4/12/26, I posted a review of Q4OS Andromeda Plasma and gave it a 10 rating for all the reasons described there. Somehow, that rating later got changed to a 4. It should not have been. I don't know how it happened, but it did.
The Q4OS implementation of Plasma is pretty slick. I have used KDE in the past, many years ago even, but eventually moved to GNOME desktops. I still like them, but I am curiously drawn back to KDE with this distro. I started using it while refurbishing some 11 year-old HP G4 Chromebooks. I was frankly amazed at the performance of Q4 on those old, underpowered machines, so I tried Q4 on some more powerful machines. The results were very good, and I am currently running it on my daily driver.
I toy around a lot with restoring old laptops to service, ones that are no longer supported by their manufacturers or the operating systems that came with them. I run Zorin, Mint, Ubuntu, Fedora, MX, Mageia, Winux, Feren and more. Actually, I like all of them at least some, but Q4 is one of my new favorites, thanks for its performance on an old Dell XPS 18. It runs better now than it did on Windows 13 years ago!