Compare comic pages
Scan CBZ, CBR, ZIP and RAR archives and compare the pages inside, rather than relying only on filenames.
Comic Duplicate Scanner.
Find copies by content.
Comic Duplicate Scanner compares the pages and image content inside files, so renamed, recompressed or resized copies can still be found even when their filenames differ.
Mac · Windows
At a glance
How can I find duplicate comic archives and images by content?
Scan a folder with Comic Duplicate Scanner. It opens supported archives and compares their pages using perceptual hashing, then lets you review matches before sending selected files to the system Trash.
Built for a focused jobA clear workflow.
A clear workflow.
A useful result.
Find image variations
Check JPG, PNG, HEIC, WEBP, BMP and GIF files, including recompressed or resized versions.
Review before removing
Marked files go to system Trash, not permanent deletion. A last-copy warning appears before batch operations; repeat scans can reuse a local SQLite hash cache.
Privacy & control
Local scans with a safer review step.
Scans use a local SQLite hash cache and do not upload your library. Marked files go to system Trash, with a last-copy warning before batch operations.
Read Modern Logic Tech’s privacy policyCommon questions
Comic Duplicate Scanner FAQ
Which comic archive formats can it scan?
Comic Duplicate Scanner supports CBZ, CBR, ZIP and RAR archives.
Can it find renamed or recompressed copies?
It compares visual page content using perceptual hashing, which can find copies even when filenames, compression or image dimensions differ.
Does it permanently delete files?
No. Marked files are sent to system Trash. The app also warns before a batch operation that would remove the last copy.
Which devices support Comic Duplicate Scanner?
It is available for Mac through the Mac App Store and for Windows through Microsoft Store.