Tux Manager: a Windows Task Manager style monitor for Linux desktops

What Tux Manager shows, and the shape of the window

The project describes itself in one line as a Linux Task Manager alternative built with Qt6, inspired by the Windows Task Manager but designed to go further, providing deep visibility into system processes, performance metrics, users and services. The screenshots in the README map out the tabs, and they are the clearest statement of scope. There are views for CPU, memory and GPU, then disk, swap, processes and a process tree, and then users and services, with the latter showing systemd units through what the filename calls systemctl. Dark and light themes are both shipped. The design intent is familiar on purpose. A user arriving from Windows will recognise the layout, and the Linux specific additions, the process tree, the user list and the services view, are the parts that go beyond the Windows original rather than copying it.

Distribution packages, AppImage, Nix and a source build

There are four documented installation routes, and the README is precise about which systems each one covers. For Debian, Ubuntu, Fedora and the Enterprise Linux derivatives, including Rocky, Alma and OL, you download prebuilt packages from the releases page. Arch Linux users install from the official repositories with a single pacman command, which makes Arch the smoothest path.

sudo pacman -S tuxmanager

For Nix, the package is available as tux-manager in the unstable channels, with the README saying it will be available in the nixos-26.11 stable channel and later. The Nix flake route adds two lines to your flake.nix.

inputs.tuxManager.url = "github:benapetr/TuxManager/";
inputs.tuxManager.inputs.nixpkgs.follows = "nixpkgs"; # optional, deduplicates dependencies

That gives you the package at inputs.tuxManager.packages with the host system substituted in. For everyone else, the README points to an AppImage on the releases page, or to building it yourself. The build is qmake based and short.

# cd to root of the repo and then:
mkdir build && cd build
qmake6 ../src
make -j$(nproc)
./tux-manager

Note the target name difference, the binary is tux-manager while the Arch package is tuxmanager.

The design philosophy, and what it rules out

The README lists a core philosophy and goals, and the list reads as a set of deliberate refusals. KISS, keep it simple stupid. A lean and clean codebase with a minimal system footprint, low RAM and CPU usage. Stability and reliability with easy debugging. No overengineered or unnecessary extra features. A simple packaging flow, where for each packaging tool there should be a script or a one line command. Minimal dependencies on third party libraries besides Qt, so that building anywhere should be trivial. And keep everything well documented. Two of those deserve emphasis. A low footprint is unusual for a system monitor, which is the kind of tool that can quietly cost you a couple of hundred megabytes of RAM, and it is a plausible reason to prefer this over the heavier monitoring tools. Minimal dependencies besides Qt is what makes the four different packaging routes possible without a matrix of native library fixes, and it is why the source build is three commands.

Translation, and the rule about machine generated strings

The README documents how to switch the interface language without touching system settings, by overriding the process locale at launch.

LC_ALL=zh_CN.UTF-8 ./tux-manager  # Simplified Chinese
LC_ALL=cs_CZ.UTF-8 ./tux-manager  # Czech
LC_ALL=pt_BR.UTF-8 ./tux-manager  # Brazilian Portuguese
LC_ALL=C ./tux-manager            # Built-in English

The requested locale may need to be generated or installed on the host system, which is a detail that catches people out when the interface appears in English despite the variable being set. There is then an explicit warning about AI assisted translations, asking that they are not submitted blindly without review by a native speaker. That is a sensible request, and it is a reminder that the localisation quality of a Qt application is a human task, not a translation pipeline output. The repository carries a docs/ directory, a packaging/ directory and a debian/ directory alongside the src/ tree, which is where the per-distribution packaging work lives, plus a CHANGELOG.md and a flake.lock and flake.nix at the root.

Where a desktop monitor is the wrong shape

The obvious boundary is that this is a desktop application. A system monitor that shows the processes, users and services of the machine it runs on is the wrong tool for a headless server or a fleet of machines, where the question is not what is on my screen but what is happening everywhere at once. For that, the relevant category is a remote metrics pipeline, an exporter that a monitoring stack scrapes, rather than a window. The other limitation follows from the philosophy. A stated aim is no overengineered or unnecessary extra features, which is a fair trade for a low footprint and a build that works everywhere, but it does mean you should not expect the depth of analysis that a dedicated profiling or tracing tool gives you. The tool tells you what the process table and the system counters say, and stops there. The practical risk for an adopter is the opposite one: a monitoring GUI is often mistaken for a monitoring system, and if you are trying to answer a question about a machine you are not sitting in front of, this is the wrong category of software.

Maintenance record and what the version tags say

The repository is not archived, and the last push was on 2026-10-14. The recent release tags show a steady line of patch releases, with v1.0.8 on 2026-09-20, v1.0.7 on 2026-05-31 and v1.0.6 on 2026-05-05, which is a release pattern consistent with a project that ships when it has something to ship rather than on a schedule. The version is still 1.0.x, so the author is treating the interface and behaviour as settled enough for a stable major version, though the 1.0 label in a young project is more a statement of intent than a promise. The licence is GPL-3.0-or-later, which is the copyleft that matters for anyone who might distribute a modified build, and the LICENSE file sits in the repository root. The primary language is C++, with Qt providing the widget layer, and the topic list is short: linux, qt and task-manager.

Editorial conclusion

Adopt Tux Manager if you want a single Linux desktop window that shows processes, memory, GPU, disk, swap, users and systemd services side by side, in the style of the Windows Task Manager that many users arrive on Linux expecting. Do not adopt it for a headless server, since the tool is a desktop GUI rather than a remote monitoring agent. Before you install it, pick the route that fits your system, pacman on Arch, a prebuilt package or AppImage elsewhere, a Nix flake, or the qmake build, and check that Qt6 is present if you go the source route.

Frequently asked questions

Official sources

1. benapetr/TuxManager on GitHub
2. Issues
3. License: GPL-3.0
4. README
5. Releases