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UNetbootin

unetbootin.github.io

Free plan Open source WindowsmacOSLinuxSelf-hosted
Visit unetbootin.github.io
Spec score 8.4 #3 of 38 in Bootable USB Software

What it is

UNetbootin creates bootable Live USB drives for Ubuntu and other Linux distributions, allowing installation without burning a CD. It can download a supported distribution or use a Linux ISO already on the computer, and the listed targets are a USB drive or hard disk. Built-in downloads include Ubuntu, Debian, Fedora, Arch Linux, Linux Mint, and FreeBSD, as well as system utilities such as Parted Magic and SystemRescueCD. The site says most Linux ISO files should work, though some require extra boot options or changes, and some cannot boot from USB as-is. Non-Linux operating system ISOs should not be expected to work because they use a different boot mechanism. UNetbootin is available for Linux, macOS, and Windows, and is free; donations are accepted. The source code is available on GitHub under GNU GPL Version 2 or above. Linux download options include an Ubuntu PPA, 32-bit and 64-bit binaries, packages for several distributions, and source code.

Spec sheet

What it does
UNetbootin creates bootable Live USB media for Ubuntu and other Linux distributions without using a CD.Read 15 Oct 2026 · unetbootin.github.io
Purpose
UNetbootin creates bootable Live USB drives for Ubuntu and other Linux distributions without burning a CD.Read 30 Sep 2026 · unetbootin.github.io
Support
The FAQ directs users to GitHub Issues for bug reports and GitHub Pull Requests for patches.Read 30 Sep 2026 · unetbootin.github.io
License
UNetbootin is released under GNU GPL version 2 or later; site materials use Creative Commons Attribution-Share-Alike 3.0.Read 15 Oct 2026 · unetbootin.github.io
Maker
The site credits Geza Kovacs as the person who created and wrote UNetbootin.Read 30 Sep 2026 · unetbootin.github.io
Build tooling
The development guide says qmake is used as the build system and Qt is used for the cross-platform GUI.Read 15 Oct 2026 · github.com
Built-in distributions
The official list includes Ubuntu, Debian, Fedora, openSUSE, Arch Linux, Linux Mint, CentOS, FreeBSD, NetBSD and many other distributions.Read 15 Oct 2026 · unetbootin.github.io
Command line
The wiki documents command-line options for language, distribution, disk image, install type, persistence and unattended installation.Read 15 Oct 2026 · github.com
Company structure
The official site identifies Geza Kovacs as the creator and author; it does not identify a separate legal company, headquarters or funding information.Read 15 Oct 2026 · unetbootin.github.io
Developer documentation
The wiki provides user guides, install-mode explanations, command references, compilation instructions, plugin material and development guidance.Read 15 Oct 2026 · github.com
Distribution support
Built-in download support includes Ubuntu, Debian, Fedora, Arch Linux, Linux Mint, FreeBSD, and other listed distributions.Read 30 Sep 2026 · unetbootin.github.io
Extensibility
Official documentation covers building and using UNetbootin plugins and creating custom versions.Read 15 Oct 2026 · unetbootin.github.io
Image sources
It can download a supported distribution or use a Linux ISO file already on the computer.Read 30 Sep 2026 · unetbootin.github.io
Independent reception
Full Circle described the interface as dated but said the program worked well for writing Linux or BSD distributions to USB media.Read 15 Oct 2026 · dl.fullcirclemagazine.org
Install targets
The interface supports USB-drive and hard-disk installation modes.Read 15 Oct 2026 · unetbootin.github.io
ISO input
Users can select a distribution for automatic download or provide an ISO already stored locally.Read 15 Oct 2026 · unetbootin.github.io
Latest release
GitHub lists release 702, adding macOS 11.1 Big Sur support, dated 4 February 2021.Read 15 Oct 2026 · github.com
Limit: boot failures
SnapFiles includes a one-star report where a 7 GB CentOS image took almost a day and produced media that would not boot, while Rufus succeeded.Read 15 Oct 2026 · snapfiles.com
Limit: hard-disk install risk
The official FAQ explains that removing a hard-disk installation can require restoring the Windows bootloader and deleting the Linux partition manually.Read 15 Oct 2026 · unetbootin.github.io
Limit: outdated support
AlternativeTo marks the project discontinued, citing a latest version from 4 February 2021 and a last repository commit dated 28 June 2023.Read 15 Oct 2026 · alternativeto.net
Limit: reliability
AlternativeTo users report failed downloads, images that do not boot and frequent need to use Rufus or balenaEtcher instead.Read 15 Oct 2026 · alternativeto.net
Limit: UEFI and Secure Boot
AlternativeTo comments repeatedly report that it is mainly useful with legacy BIOS or CSM and lacks dependable UEFI/Secure Boot support.Read 15 Oct 2026 · alternativeto.net
Linux downloads
The Linux downloads page lists an Ubuntu PPA, 32-bit and 64-bit binaries, packages for several distributions, and source code.Read 30 Sep 2026 · unetbootin.github.io
Multiple installs
Multiple installations on the same device are not supported.Read 15 Oct 2026 · en.wikipedia.org
Operating system limit
The site says not to expect non-Linux operating system ISOs to work because they use a different boot mechanism.Read 30 Sep 2026 · unetbootin.github.io
Other images
The site says most Linux ISO files should work, but some require extra boot options or modifications and some cannot boot from USB as-is.Read 30 Sep 2026 · unetbootin.github.io
Other ISO limits
The project says some Linux images need extra boot options and that non-Linux operating-system ISOs generally use a different boot mechanism.Read 15 Oct 2026 · unetbootin.github.io
Persistence
Ubuntu Live USB persistence is supported for preserving files between reboots.Read 15 Oct 2026 · en.wikipedia.org
Portability
AlternativeTo describes it as portable and says no installation is required to run it.Read 15 Oct 2026 · alternativeto.net
Praise: ease of use
SourceForge reviewers repeatedly describe the tool as easy to use for creating Linux boot media and useful with personal ISO files.Read 15 Oct 2026 · sourceforge.net
Praise: simple workflow
Softpedia rated the interface intuitive and praised the way it avoids requiring users to learn console commands.Read 15 Oct 2026 · softpedia.com
Public API or SDK
The project documents command-line automation and plugins but does not state that it offers a hosted public API or SDK.Read 15 Oct 2026 · github.com
Rating on AlternativeTo
3.5 out of 5 from 19 ratings.Read 15 Oct 2026 · alternativeto.net
Rating on SourceForge
4.7 out of 5 stars from 134 reviews.Read 15 Oct 2026 · sourceforge.net
Security statement
The official FAQ denies spyware and malware and says antivirus Trojan.generic alerts can be false positives caused by the auto-uninstall feature.Read 15 Oct 2026 · unetbootin.github.io
Source and license
The project source code is available on GitHub and the site identifies the software license as GNU GPL Version 2 or above.Read 30 Sep 2026 · unetbootin.github.io
Source availability
Source code is publicly hosted in the unetbootin/unetbootin GitHub repository.Read 15 Oct 2026 · github.com
Support channels
The official FAQ directs bug reports to GitHub Issues and patches to GitHub Pull Requests; translation work is handled through Launchpad and Transifex.Read 15 Oct 2026 · unetbootin.github.io
System requirement note
Release 700 notes that macOS 10.12 Sierra became the minimum macOS version and that Linux builds made on Ubuntu 16.04 may not run on distributions from 2015 or earlier.Read 15 Oct 2026 · github.com
System utilities
The official site lists rescue and utility images such as Parted Magic, SystemRescueCD, Super Grub Disk, Kaspersky Rescue Disk, Ophcrack and FreeDOS.Read 15 Oct 2026 · unetbootin.github.io
Testing status
The development guide states that the project had no unit tests at the time it was written.Read 15 Oct 2026 · github.com

Plans and prices

UNetbootin Free No charge; donations accepted Windows, Linux and macOS desktop downloads · creates bootable USB or hard-disk installs · Linux/BSD distributions and supplied ISO images Read 15 Oct 2026 · unetbootin.github.io

Every UNetbootin plan and price →

Strong points and limits

Strong points

  • Free, with donations accepted
  • Supports Linux, macOS, and Windows
  • Can use downloaded distributions or local Linux ISOs
  • Can target a USB drive or hard disk

Limits

  • Non-Linux operating system ISOs are not expected to work
  • Some Linux ISOs need extra options or changes
  • Some ISOs cannot boot from USB as-is

Who it suits

UNetbootin may suit people preparing Linux installation or utility media from a download or an ISO they already have. It is less suited to someone trying to boot a non-Linux operating system ISO.

Verdict

UNetbootin provides a free way to prepare boot media for many Linux distributions and some system utilities. ISO compatibility varies, and non-Linux operating system images are outside its stated scope.

Where Specifiction places it

Alternatives to UNetbootinAll alternatives →