Forum Discussion
What is the best duplicate image finder for Windows 11?
Honestly, I've had great luck using AnyDupeCleaner to find tons of duplicate photos on my own PC. It's super easy to use and freed up a bunch of space for me.
I followed this guide: (worked great for me)
https://www.uuwinfox.com/find-remove-duplicate-files
For comparing two photos, you can use the ImageeMagick CLI. This is a powerful command-line tool for image manipulation (resizing, converting, editing, etc.). It also includes features as free duplicate photo finder to detect and remove duplicates or differences.
Method 1: Simple Comparison (compare command)
Checks pixel-level differences and outputs a difference image + similarity metric.
compare -metric PSNR image1.jpg image2.jpg diff.png- -metric PSNR: Uses Peak Signal-to-Noise Ratio (higher = more similar).
- diff.png: Generates a visual difference file (white pixels = differences).
Interpretation:
- PSNR > 30 dB → Very similar (likely duplicates).
- PSNR < 20 dB → Significant differences.
Method 2: Faster Hash Comparison
Generates a hash fingerprint of each image for quick exact matching. This can be working perfectly as duplicate image finder in some cases.
identify -format "%#" image1.jpg
identify -format "%#" image2.jpgIf the hashes match → exact duplicates. And it works only for identical files (fails on resized/edited images).