Butane (formerly the Fedora CoreOS Config Transpiler, FCCT) translates human readable Butane Configs into machine readable Ignition Configs.
Publisher’s description
What is butane?
butane is an open-source terminals & cli tool program for Windows from Fedora Project. It is written in Go.
Installation and requirements
Official installers exist for 64-bit as Portable. It runs without installation (portable).
Updates and version history
The current version is 2.27.0, released on September 1, 2026. 17 versions are listed since September 4, 2022, each with links to its own installer files. That is about 4.3 releases a year.
Popularity and file types
The source code on GitHub (coreos/ignition) has 980 stars. On Windows it registers 1 file type, including .bu. Similar programs include PowerShell, yq and Oh My Posh.
Project description on GitHub: “First boot installer and configuration tool”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
- Updated in the last two months
Cons
- No native ARM64 build
In short: butane is an open-source terminals & cli tool tool for 64-bit PCs. It is actively maintained.
Is butane safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
E990C186E321C25E748830A776800D8FC38E3B1981208A412541C1A8C870151E· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Security practices (OpenSSF Scorecard)
Automated checks of the coreos/ignition repository on GitHub by the Open Source Security Foundation, last run on October 19, 2026.
- Code review10
- Actively maintained10
- No dangerous workflows10
- No binaries in the repository10
- Licence declared10
- Security policy10
- Signed releases8
- Restricted token permissions0
- OpenSSF Best Practices badge0
- Fuzzing0
- Pinned dependencies0
- Static code analysis0
The score rates how the project is developed and released, not whether the program is safe to install. scorecard.dev
Recent versions
All 17 versions ›17 versions over 4 years · about 4.3 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 2.27.0Latest | September 1, 2026 | — | 64-bit Portable |
| 0.29.0 | July 7, 2026 | — | 64-bit Portable |
| 0.28.0 | May 21, 2026 | — | 64-bit Portable |
| 0.27.0 | March 6, 2026 | — | 64-bit Portable |
| 0.26.0 | January 21, 2026 | — | 64-bit Portable |
| 0.25.1 | September 30, 2025 | — | 64-bit Portable |
| 0.25.0 | September 10, 2025 | — | 64-bit Portable |
| 0.24.0 | May 28, 2025 | — | 64-bit Portable |
Install from the command line
Silent install ›winget install --id Fedora.CoreOS.butane -eProgram files (.exe): butane.exe
Related guide: How to use winget: install and update apps
Information
- Publisher
- Fedora Project
- Category
- Terminals & CLI tools
- Licence
- Apache-2.0
- Price
- Free
- Source code
- github.com/coreos/ignition
- Written in
- Go
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 2.27.0
- Released
- September 1, 2026
- Added to the catalogue
- September 4, 2022
- Versions listed
- 17
- Updates / year
- 4.3
- GitHub stars
- 980
- GitHub forks
- 300
- Website
- github.com
- winget ID
- Fedora.CoreOS.butane
File types it opens (1)
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is butane free?
Yes. butane is open-source software under the Apache-2.0 licence.
Is butane safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install butane with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does butane run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of butane?
The versions page lists all 17 versions with links to their official installer files, back to September 4, 2022.
Can I use butane without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to butane?
PowerShell, yq, Oh My Posh, QPDF and fzf. The alternatives page compares them.
