KIWI NG
KIWI NG is a command-line tool for building bootable, reproducible Linux images from versioned descriptions.
What KIWI NG is
KIWI NG is a command-line tool for building bootable, reproducible Linux images from versioned descriptions. It prepares a root tree using an image description and package repositories, then turns that tree into one or more artifacts, such as disk images, ISO files, or containers. Targets include virtual machines, cloud platforms, removable media, and specialized deployments. Descriptions can specify packages, repositories, metadata, users, storage, system configuration, and image types; overlays, archives, and scripts provide further customization. The project lists Fedora, CentOS Stream, openSUSE, Ubuntu, Debian, and Arch Linux among its supported distributions. KIWI NG is free under the GPL-3.0 license, daemonless, supports multi-architecture builds, and uses a local cache. It can be installed through a distribution package manager, Open Build Service, or Python's pip. A build host needs a recent Linux distribution, Python 3.9 or newer, Git, and at least 15 GB of recommended free disk space. QEMU can optionally boot and inspect generated images.
Good
- Creates multiple artifact types from one root tree
- Descriptions can define packages and system settings
- Supports multiple Linux distributions and architectures
- Free under the GPL-3.0 license
Watch out
- Requires Linux, Python 3.9 or newer, and Git
- Recommends at least 15 GB of free disk space
- A matching target-distribution build host is recommended
Who it suits
KIWI NG suits Linux users who need to produce repeatable images for virtual machines, cloud platforms, removable media, or containers. It is a fit for people comfortable using command-line tools and maintaining a suitable Linux build host.
Verdict
KIWI NG offers a configurable route from versioned image descriptions to several Linux image formats. Check the build-host requirements and supported distribution guidance before setting it up.
Plans and prices
From KIWI NG's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| KIWI NG | Free | Open-source Linux image builder · GPL-3.0 license |
The facts
Each one read from KIWI NG's own pages, with the date it was checked.
What it does
- Build-host constraint
- The documentation recommends using a build host from the same distribution as the target image, near its major version, because builds depend on distribution tools and behavior.checked 7 Oct 2026
- Build workflow
- It prepares a root tree from an image description and package repositories, then creates one or more image artifacts.checked 7 Oct 2026
- Community support
- The project provides an open mailing list and a Matrix room for contact.checked 7 Oct 2026
- Customization
- Builds can be customized with overlays, archives, and scripts.checked 7 Oct 2026
- Distribution
- The documentation links to source code, GitHub releases, and RPM packages.checked 7 Oct 2026
- Distribution support
- The documentation lists Fedora, CentOS Stream, openSUSE, Ubuntu, Debian, and Arch Linux among the officially tested and supported distributions.checked 7 Oct 2026
- Image definitions
- Versioned descriptions can specify image metadata, repositories, packages, users, and storage settings.checked 7 Oct 2026
- Image descriptions
- A description directory defines packages, target-system configuration, and the image types to create, using config.xml or a .kiwi file.checked 7 Oct 2026
- Image formats
- A prepared root tree can be turned into disk, ISO, or container artifacts.checked 7 Oct 2026
- Installation
- KIWI NG can be installed through a distribution package manager, from the Open Build Service, or with Python's pip package manager.checked 7 Oct 2026
- Integration
- KIWI NG can use QEMU to boot and inspect generated images; QEMU is listed as an optional virtualization environment.checked 7 Oct 2026
- License
- The source repository identifies the project license as GPL-3.0.checked 7 Oct 2026
- Optional virtualization
- A virtualization environment such as QEMU can optionally be used to boot and inspect resulting images.checked 7 Oct 2026
- Output formats
- The documentation gives qcow2 virtual machine disks as an example and says one prepared root tree can produce multiple image types.checked 7 Oct 2026
- Output targets
- It builds images for virtual machines, cloud platforms, removable media, containers, and specialized deployment targets.checked 7 Oct 2026
- Package managers
- The documented package managers include apk, apt, dnf4, dnf5, microdnf, pacman, and zypper.checked 7 Oct 2026
- Product
- KIWI NG is a command-line image builder for Linux distributions that creates bootable, reproducible images.checked 7 Oct 2026
- Purpose
- KIWI NG is a command-line image builder that creates bootable, reproducible Linux images for virtual machines, cloud platforms, removable media, containers, and specialized deployment targets.checked 7 Oct 2026
- Requirements
- The build host needs a recent Linux distribution, Python 3.9 or newer, Git, and at least 15 GB of recommended free disk space.checked 7 Oct 2026
- Security configuration
- Image descriptions can import additional CA certificates during a build.checked 7 Oct 2026
- Source and license
- The maker's GitHub repository identifies KIWI as an OS image and appliance builder and lists a GPL-3.0 license.checked 7 Oct 2026
- Support
- The project lists an open kiwi-images mailing list and a Matrix room for contact.checked 7 Oct 2026
- Supported build hosts
- The project lists Fedora, CentOS Stream, openSUSE, Ubuntu, Debian, and Arch Linux among its officially tested and supported distributions, with minimum versions specified on the page.checked 7 Oct 2026
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