Image format support depends on how the release binary was compiled and whether optional libraries are available. Not every downloadable asset includes identical codecs.
What to know before you begin
Image format support depends on how the release binary was compiled and whether optional libraries are available. Not every downloadable asset includes identical codecs. The project offers several scanning modes and the current version may place controls differently in Krokiet versus the older GTK GUI. Follow the meaning of the option you see, not just a screenshot from a different release.
For Windows, verify that your chosen folder is accessible and that the correct graphical frontend is running. The recommended approach starts with a small test set, especially when an action could rename, move, delete or link files.
Step-by-step: Why are some RAW or HEIF photos missing from results?
- Check supported features and dependencies in the release notes.
- Confirm the file actually opens in your normal image viewer.
- Try a build with the required image feature if one is provided.
- Scan a small directory containing known examples of the format.
Important limitation
How to verify the result
Verify the same sample images appear in the scan after switching builds. A scan's estimated savings or the presence of a matching group does not by itself establish which copy should be discarded.
If the procedure does not match your screen, inspect the project's own FAQ and troubleshooting notes and identify the exact release and frontend first.
FAQ
Why are some RAW or HEIF photos missing from results?
Image format support depends on how the release binary was compiled and whether optional libraries are available. Not every downloadable asset includes identical codecs.
What is the biggest risk for this task?
Renaming an extension will not add missing decoder support.
How do I check whether it worked?
Verify the same sample images appear in the scan after switching builds.
Related Windows guides
- Find Similar Images with Czkawka on Windows
- Similar Image Difference Threshold: How to Tune It
- Czkawka Similar Videos: Scan and Review
- Fix Missing FFmpeg or FFprobe in Czkawka
Editorial notes reviewed: November 1, 2026. Version-specific facts are based on the developer's release and FAQ. This guide is educational; it is not a guarantee about a third-party download.
Try Czkawka on Windows
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