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MGToolbox

Duplicate Image Finder

Analyzer100% In-Browser

Drop a batch of photos and find exact and near-duplicates — even after resizing or re-compression — via perceptual hashing.

Drag and drop your images here

Select or drop a whole batch — every file is fingerprinted locally

100% In-Browser • Files are processed 100% locally
Zero Data Collection
Files are processed 100% locally
Instant Client-Side Speed
Zero network upload delays
Free & Unlimited
No registration or credit card needed

Find Duplicate & Near-Duplicate Images in a Batch

Select a folder of photos and every file is fingerprinted with a perceptual hash (dHash): exact duplicates, resized copies, and re-compressed versions of the same shot are grouped together with a similarity distance you can tune.

Photos never leave your device — hashing happens in your browser. It is the quick way to clean up camera bursts, downloaded duplicates, and "same photo, five file names" folders before you back them up.

Frequently Asked Questions

Everything you need to know about using Duplicate Image Finder safely and efficiently.

Yes — that is the point of perceptual hashing. A photo and its 50%-quality JPEG re-save land a tiny distance apart (0–4 bits out of 64) and are grouped together.
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