qarmin/czkawka 11.0.0 on GitHub

Version 11.0.0 - 14.02.2026r

Breaking changes

Users

The Czkawka GUI config file was migrated from a custom, broken format to JSON. All settings must be configured again. The old TXT file is not removed and can be used as a reference.
In broken files mode, file type is no longer stored in cache. Existing cache files are incompatible with this version and will be automatically regenerated.
The Similarity Preset enum in similar images mode was replaced with an integer argument Max Difference in range 0-40.
HEIF images are now rotated only once instead of twice. Existing cache may contain incorrectly rotated images and should be regenerated by removing cache(but this requires manual intervention).

Devs

Public API functions were slightly adjusted to avoid unnecessary cloning and referencing of copyable types.
Similarity variables were renamed to Difference.
Applications must call register_image_decoding_hooks(); at startup to enable reading HEIF and JXL images.

Core

In similar images mode and previews, extension validation was removed in most cases - #1623
Build-time and runtime versions of Musl and Glibc are now printed to logs - #1604
Destination file removal during symlinking is now delayed to prevent data loss in case of failure - #1672
Fixed invalid path canonicalization on Windows - #1604
Comparison results are now deterministic - #1654
Built-in JPEG previews are now read from RAW images when available - #1655
Fixed silent panics when the logger could not write to the terminal - #1658
Commit hash is now included in logs - #1672
Improved and fixed logic for grouping similar images by similarity level - #1685
Added scan time measurement - #1674, #1685
Added support for detecting broken video files in the broken files tool, via external ffmpeg and ffprobe - #1745
Added new video optimizer mode to reencode videos with more efficient codecs and crop black/static bars, via external ffmpeg and ffprobe - #1726, #1745
Added new exif remover mode to remove selected EXIF tags from files - #1745
Added new bad names mode to find and rename files with problematic names, e.g. non-ASCII characters or uppercase extensions - #1754
Added ability to scan individual files, not only folders - #1745
Limited supported image size to 2000 MP - #1748
Automatic cleanup of outdated entries now runs at most once per week - #1748
Added a function to manually remove outdated entries from cache files - #1748
Added video property information, bitrate, codec, FPS, dimensions, duration for similar videos tool - #1748
Fixed double rotation of HEIF images - #1783
Fixed incorrect handling of some HEIF images by using built-in libheif-rs decoding methods - #1783

CLI

Enabled colored terminal output by default, can be disabled via feature flag - #1672
Fixed a regression where results were not printed to the terminal - #1672
Added dry_run and move_to_trash options to most of tools - #1685
Fixed unbound --excluded-extensions option - #1748
Added new modes: video optimizer, exif remover, and bad names - #1760

GTK GUI

Restored the sort button and fixed crashes related to sorting - #1623
Configuration now uses JSON format instead of a custom one - #1623
Added multithreaded creation of hard links, symbolic links, and file removal - #1672
Fixed a GTK regression that caused image previews to appear extremely small - #1658
Added a button to easily swap between compared images - #1658
Performed refactoring to evaluate possible migration to GTK 5, currently not very feasible - #1658
Fixed sorting by size in big files mode - #1691
Fixed freezes caused by an invalid function declaration in gtk4-rs - #1691
Added an About popup informing that Krokiet is the successor application - #1718
Added --cache and --config CLI options to open cache and config paths - #1745
Added shortest and longest path selection modes - #1738

Krokiet

Added a new logo - #1726
Added video thumbnails, single and grid view - #1714
Displayed cache, thumbnails, and logs size in settings - #1714
Added sorting by clicking column headers - #1718
Introduced a default limit of 500 message lines to prevent freezes caused by slow TextEdit performance - #1718
Slightly increased font sizes to improve readability - #1726
Added runtime application scaling, with some limitations - #1726
Cleared messages in the bottom panel when a new scan starts - #1726
Fixed a crash when clicking previous results while a new scan was in progress - #1726
Changed default behavior to move files to trash instead of permanently deleting them - #1726
Added a notification dialog when the application cannot be opened - #1745
Added --cache and --config CLI options to open cache and config paths - #1745
Added new modes: video optimizer, exif remover, and bad names - #1726, #1745, #1754
Modification dates are now displayed in local time instead of UTC - #1748
Added a new menu option to manually remove outdated cache entries - #1748
Added an optional scan completion sound, hidden behind the audio feature flag - #1754
Fixed an issue where sort options were not updating due to multiple invalid signal connections - #1760
Added support for creating hard links and symbolic links - #1760
Added shortest and longest path selection modes - #1738
Fixed crashes caused by selection cache desynchronization - #1783

External

Wine 10.20 includes a bugfix that resolves crashes when opening file dialogs in Czkawka GUI - Wine 49987 issue

Prebuilt binaries

Krokiet Windows binaries with the Skia backend are now available, this only works with MSVC build and requires Visual C++ Redistributable
Intel Mac binaries are now built with the latest available macOS version, currently 15
Windows prebuilt binaries now bundle libEGL and libGLES, which fixes issues running GTK 4.12 builds on some systems, GTK 4.6 builds are no longer provided
Krokiet macOS OpenGL binaries are deprecated due to outdated and broken Apple OpenGL drivers, Skia Vulkan binaries are now provided and recommended
Some Linux binaries are now built on Ubuntu 24.04 to support a newer libheif-rs with improvements, including reading images with pixel formats other than rgb8
Windows binaries now use an 8 MB stack size to match Linux, fixing stack overflows in debug builds
Windows binaries now include built-in icons

Virustotal

Legend:

If you are a beginner and don't know which version to use, start with one of these depending on your OS (if they don’t work, try different builds):
- Windows – windows_krokiet_on_linux, windows_czkawka_gui_gtk_46
- Mac – mac_krokiet_skia_vulkan_x86_64, mac_krokiet_skia_vulkan_arm64, mac_czkawka_gui_x86_64, mac_czkawka_gui_arm64
- Linux – linux_krokiet_skia_opengl_x86_64, linux_krokiet_x86_64, linux_czkawka_gui_x86_64
krokiet – graphical version of the app (recommended over the GTK version)
gtk_gui – graphical GTK version of the app
cli – command-line version of the app
gtk_46, gtk_412 – GTK versions used to build the Windows app. On some systems gtk_46 works, on others gtk_412, so choose the one that works on your computer.
arm, x86_64 – CPU architecture. Most Windows/Linux uses x86_64, while on Mac the arm version is becoming the most common choice. (To run the app, you need to use the correct one.)
heif, raw, avif – additional features that require extra libraries installed on the OS
skia_opengl, skia_vulkan – alternative Linux backends for Krokiet; may fix some issues like blurry fonts

You can read more about this version on Medium:

English article – https://medium.com/@qarmin/czkawka-krokiet-11-0-0f6cea385934
Polish article – https://medium.com/@qarmin/czkawka-krokiet-11-0-c95ee35eccc2