A reference implementation of JPEG XL (encoder and decoder). This software library is used by many applications that support JPEG XL.
Publisher’s description
What is libjxl?
libjxl by libjxl is open-source Windows software in the media converters category. It ranks 41st by popularity among media converters in this catalogue. It is written in C++.
Installation and requirements
The publisher provides Portable installers for 64-bit and 32-bit Windows. It runs without installation (portable).
Updates and version history
The current version is 0.12.0, released on July 2, 2026. The version history goes back to September 9, 2025: 3 releases, all linked to the official files.
Popularity and file types
The source code on GitHub (libjxl/libjxl) has 3,788 stars. Similar programs include Pandoc, HandBrake and scrcpy.
Project description on GitHub: “JPEG XL image format reference implementation”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
Cons
- No native ARM64 build
In short: libjxl is an open-source media converter tool for 64-bit and 32-bit PCs.
Is libjxl 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:
3025D7E308390796D20492322E606BC92DECAEE7B6BC99D3F7547870AE5DB7DE· 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 libjxl/libjxl repository on GitHub by the Open Source Security Foundation, last run on October 22, 2026.
- Code review10
- Dependency update tool10
- Actively maintained10
- Security policy10
- No dangerous workflows10
- No binaries in the repository10
- Restricted token permissions10
- Licence declared10
- No known vulnerabilities10
- Static code analysis10
- Fuzzing10
- Tests in CI10
- Contributors from several organisations10
- Pinned dependencies9
- Branch protection8
- OpenSSF Best Practices badge7
- Signed releases0
The score rates how the project is developed and released, not whether the program is safe to install. scorecard.dev
Recent versions
All 3 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 0.12.0Latest | July 2, 2026 | — | 32-bit ZIP64-bit ZIP |
| 0.11.2 | February 10, 2026 | — | 64-bit ZIP |
| 0.11.1 | September 9, 2025 | — | 64-bit ZIP |
Install from the command line
Silent install ›winget install --id libjxl.libjxl -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- libjxl
- Category
- Media converters
- Licence
- BSD-3-Clause
- Price
- Free
- Source code
- github.com/libjxl/libjxl
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 64-bit, 32-bit
- Installer
- Portable
- Version
- 0.12.0
- Released
- July 2, 2026
- Added to the catalogue
- September 9, 2025
- Versions listed
- 3
- GitHub stars
- 3,788
- GitHub forks
- 426
- Website
- github.com
- winget ID
- libjxl.libjxl
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is libjxl free?
Yes. libjxl is open-source software under the BSD-3-Clause licence.
Is libjxl 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 libjxl 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 libjxl run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit and 32-bit version through emulation.
Where can I download an older version of libjxl?
The versions page lists all 3 versions with links to their official installer files, back to September 9, 2025.
Can I use libjxl without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to libjxl?
Pandoc, HandBrake, scrcpy, File Converter and IrfanView. The alternatives page compares them.
