What Is Quickemu? The Beginner's Guide to Two-Command Virtual Machines (quickget + quickgui, Explained)

CodexFuse Team · 2026-11-04T16:29:25.650Z · 10 min read min read

What Is Quickemu? The Beginner's Guide to Two-Command Virtual Machines (quickget + quickgui, Explained)

If you have been asking "what is quickemu" after spotting it in Linux forums, distro reviews, or Reddit threads, here is the short version: it is the fastest way to run a virtual machine on Linux. Most VM tools make you hunt down an ISO, click through a dozen setup wizards, and tune hardware settings you barely understand. Quickemu replaces all of that with two terminal commands — one downloads the operating system, the other boots it, already optimized for your computer. Think of this as quickemu explained for total beginners: no QEMU background assumed. There is no installer wizard, no configuration checklist, and for normal use you never need root permissions.

What Is Quickemu, Exactly?

Quickemu is a wrapper around the QEMU emulator that automatically does the right thing when creating virtual machines. Instead of exposing QEMU's hundreds of options, Quickemu detects your hardware and builds the VM configuration for you, so you never have to think about CPU flags, memory allocation, or display backends.

The official README describes it this way: "Quickemu is a wrapper for the excellent QEMU that automatically 'does the right thing' when creating virtual machines. No requirement for exhaustive configuration options. You decide what operating system you want to run and Quickemu takes care of the rest." That is the whole philosophy — it is not its own hypervisor, it is an opinionated layer on top of QEMU and KVM that hides the complexity. Nearly 1,000 operating system editions are supported, from Ubuntu and Fedora to Windows 11 and macOS guests.

The project lives on GitHub as quickemu-project/quickemu (the repository moved from its original wimpysworld/quickemu home, so ignore older tutorials that still clone the old address). It is MIT-licensed, has more than 16,000 stars, and as of 2026-11-04 the current release is 4.9.9, published 2026-02-10. Virtual machines share your Linux host's kernel-level virtualization, which puts Quickemu in the same VPS hosting lineage: a real machine carved into smaller, isolated ones by the hypervisor.

How Do quickget and quickemu Work Together?

Quickemu is actually two small programs with one job each: quickget downloads the operating system ISO and writes the VM config file, and quickemu reads that config and launches the virtual machine. You never search for download mirrors or verify checksums by hand.

Per the official README: "quickget automatically downloads the upstream OS and creates the configuration" and "quickemu enumerates your hardware and launches the virtual machine with the optimum configuration best suited to your computer." The configs live in your home directory or even on a USB stick, and no elevated permissions are required to run the virtual machines — it is all normal-user work.

Here is the real quickget help output, captured from release 4.9.9:

Usage:
  quickget <os> <release> [edition]
  quickget ubuntu 22.04

Advanced usage:
  quickget <arg> [path] <os> [release] [edition]
  quickget --download ubuntu 22.04

Arguments:
   --arch           <arch>                    : Set architecture (arm64, aarch64, amd64, x86_64)
   --download       <os> <release> [edition]  : Download image; no VM configuration
   --create-config  <os> [path/url] [flags]   : Create VM config for an OS image
   --open-homepage  <os>                      : Open homepage for the OS
   --show           [os]                      : Show OS information
   --version                                  : Show version
   --help                                     : Show this help message

So the classic two-command flow looks like this: quickget ubuntu-mate 22.04 fetches the ISO and writes ubuntu-mate-22.04.conf, then quickemu --vm ubuntu-mate-22.04.conf boots it in a SPICE display window. Two commands, one running OS.

How Do You Install Quickemu?

On most Linux distributions Quickemu installs from the official package source in under a minute; the README's install page lists routes for Ubuntu, Debian, Fedora, Arch, NixOS, and macOS. Pick your distro below, then follow the five-step arc.

Official install routes (from the quickemu wiki "01 Installation"):

• Ubuntu: add the PPA — sudo apt-add-repository ppa:flexiondotorg/quickemu, then sudo apt update and sudo apt install quickemu. On Ubuntu 25.04 (plucky) and later it is also available directly in the Universe repository.
• Debian: native package on Debian 13+, otherwise grab the .deb from the GitHub releases page and install with sudo apt-get install ./quickemu_x.y.z-1_all.deb.
• Fedora 41+: sudo dnf install quickemu.
• Arch / Manjaro: yay -Sy quickemu from the AUR.
• NixOS: add it to your environment.systemPackages or run nix shell nixpkgs#quickemu.
• macOS (as a host): brew tap quickemu-project/quickemu, then brew install quickemu.
• From source: git clone --filter=blob:none https://github.com/quickemu-project/quickemu, then cd quickemu/docs and sudo make install (our Git beginner guide covers cloning if you are new to it).

Your first virtual machine in five steps:

1. Check hardware virtualization. Your CPU must support VT-x/AMD-V. Most machines from the last decade do — enable it in the BIOS/UEFI if it is off.
2. Install Quickemu using one of the routes above. This is the last time you will type sudo for a while.
3. Download an OS: quickget ubuntu 24.04 — quickget fetches the ISO from the official upstream source and writes the .conf file.
4. Launch it: quickemu --vm ubuntu-24.04.conf — quickemu measures your host, picks the right CPU cores and RAM, and opens the VM in a SPICE viewer window.
5. Install the OS inside the VM normally, then reboot it. From now on you just run step 4 whenever you want that machine.

Note that downloading a Windows or macOS ISO works the same way, but each OS's own licensing terms still apply to the guest you install.

What Are Quickemu's Snapshots?

Quickemu supports copy-on-write snapshots, so you can freeze a VM's disk state before a risky change and roll it back in seconds. The feature comes from QEMU's snapshot machinery, exposed through simple flags.

The official man page documents the full set: --snapshot create <tag> saves the current state under a name you choose, --snapshot apply <tag> restores it, --snapshot delete <tag> removes it, and --snapshot info lists what you have. There is also --status-quo, which boots the VM and discards every change at shutdown — handy for testing software you do not trust or for a kiosk-style throwaway desktop.

In practice this means you can snapshot a fresh Windows 11 install, spend an afternoon installing sketchy software, and be back to a clean machine with one command. No disk imaging tools, no waiting.

What Is Quickgui?

Quickgui is the official graphical front end for Quickemu — a Flutter desktop app that lets you browse operating systems, download ISOs, and manage VMs by clicking instead of typing. It is built on top of quickget and quickemu, so everything it does is the same two-command machinery with buttons.

The project is maintained by Mark Johnson and Yannick Mauray at quickemu-project/quickgui, it is MIT-licensed, and it has over 1,300 stars on GitHub. Ubuntu users install it from the same PPA as Quickemu — sudo apt install quickgui — and there are also Debian, Fedora, AppImage, and Nix packages.

One honest caveat: quickgui's latest published release is 1.2.10, from 2024-11-07, which lags behind the actively maintained CLI. If the GUI ever refuses to do something, the CLI commands in this article always work — the terminal path is the project's first-class interface.

Quickemu vs VirtualBox: Which Should You Pick?

Pick Quickemu if you want a VM running in minutes with zero tuning; pick VirtualBox if you need a GUI wizard, cross-platform hosts, and deep manual control. They solve the same problem from opposite ends.

Interestingly, the quickemu vs virtualbox query has no dedicated comparison anywhere on page one — every result is a QEMU-vs-VirtualBox piece. Quickemu is a different product from QEMU, so do not let those pages stand in for this comparison.

If you want the full VirtualBox workflow first, our VirtualBox beginner guide walks through it step by step — after that, Quickemu's two-command model will feel like a shortcut you wish you had known sooner.

What Are Quickemu's Limitations?

Quickemu is a Linux-first tool: the host must run Linux (or WSL), QEMU 6.0.0 or newer with GTK, SDL, SPICE, and VirtFS support, and a CPU with hardware virtualization enabled. It will not run on bare Windows or on an Intel Mac as the host.

A few more honest limits, stated once: Apple's macOS license only permits running macOS in a VM on Apple hardware, so a macOS guest on your Linux PC is a licensing gray area you should understand before trying it. The quickgui desktop app trails the CLI by a couple of years. And because Quickemu is opinionated, fine-grained tuning (custom network topologies, nested virtualization experiments) still means editing the .conf file by hand or dropping back to raw QEMU.

Finally, watch out for stale guides: anything published before 2024 still clones the old wimpysworld/quickemu address and quotes the retired "360+ operating systems" figure. The project moved to quickemu-project/quickemu and the current claim is nearly 1,000 OS editions — use a fresh source.

Sources

• Quickemu README — github.com/quickemu-project/quickemu (fetched 2026-11-04): wrapper definition, two-command model, no-sudo requirement, "nearly 1000 operating system editions"
• Quickemu wiki, "01 Installation" (fetched 2026-11-04): Ubuntu PPA, Fedora, Debian, Arch AUR, NixOS, macOS Homebrew, and source install commands
• Quickemu man page (fetched 2026-11-04): --snapshot create/apply/delete/info, --status-quo flags
• GitHub tags for quickemu-project/quickemu (fetched 2026-11-04): latest tag 4.9.9; release notes published 2026-02-10
• quickgui repository — github.com/quickemu-project/quickgui (fetched 2026-11-04): Flutter GUI, maintainers, latest release 1.2.10 (2024-11-07)
• Author's live session, 2026-11-04: git clone --filter=blob:none https://github.com/quickemu-project/quickemu; quickget --help output quoted verbatim from release 4.9.9
• Google SERP for "what is quickemu" (fetched 2026-11-04): page-1 types = how-to tutorials, forum thread, raw README, cheatsheet; no ≤90d dedicated independent beginner explainer

Frequently Asked Questions

Is Quickemu the same as QEMU?

No — Quickemu is a wrapper that calls QEMU for you, not a replacement for it. QEMU is the actual emulator and hypervisor engine; Quickemu is the friendly layer that downloads ISOs, detects your hardware, and generates the optimal QEMU configuration automatically.

Do I need sudo to run Quickemu?

Not for normal use. Installing the package itself needs sudo, but creating, downloading, and running virtual machines all work as a normal user — the README states that no elevated permissions are required to run the virtual machines.

Can Quickemu run Windows and macOS?

Yes. Quickemu downloads official Windows and macOS ISOs through quickget and boots them with drivers and settings tuned for each. Windows guests work well; note that Apple's license only permits macOS virtualization on Apple hardware.

How many operating systems does Quickemu support?

Nearly 1,000 OS editions according to the official README — Linux distributions, BSDs, Windows releases, and macOS versions. Our count of the OS entries inside quickget came to 93 families, with many editions each.

Should beginners use quickgui or the command line?

Either works, but the command line is the project's first-class interface and the one this guide covers. quickgui is the official Flutter GUI if you prefer clicking — just know it has not had a release since 2024 while the CLI keeps moving forward.