Risk Analyzer.
Compare a spoofed file with its original: which duplicate detectors still recognise it — perceptual hashes (PDQ, vPDQ, TMK), a learned copy detector (SSCD) and an audio fingerprint — and how intact it still looks (SSIM).
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Overview
About Duplicate-Detection Risk Analyzer
The Risk Analyzer compares an original file with a modified version and reports which detection methods still link them: perceptual hashing (PDQ for images, vPDQ and TMK+PDQF for video, which Meta published and has confirmed using), a learned copy-detection model (SSCD, published by Meta), audio fingerprinting (Chromaprint) and structural similarity (SSIM). Platforms do not disclose their thresholds, so the result says which methods recognise the file — not what a given platform will decide.
How it works
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1
Upload both files
Provide the original and the modified variant you want to compare.
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2
Run the analysis
The tool computes perceptual-hash distance, aligned SSIM and audio fingerprint match.
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3
Read the score
Each detector is read on its own; the headline takes the one that still recognises the file most strongly.
Frequently asked questions
What is perceptual hashing (PDQ and vPDQ)?
PDQ and vPDQ are perceptual hashes used to detect near-duplicate images and video. They produce a fingerprint that stays close for visually similar files, so the distance between two fingerprints estimates how alike they look.
What does the similarity score mean?
It says how strongly each detection method still links the two files. It is not a probability, and not a prediction of what a platform will do: platforms publish neither their exact models nor their thresholds.
What is the learned copy detector?
SSCD, the copy-detection model Meta published. Unlike a hash, it is trained to recognise a picture through crops, zooms, colour changes and overlays, and it stands in for the learned near-duplicate matching Meta confirms running.
Does it check audio as well?
Yes. It uses Chromaprint audio fingerprinting to measure how closely the soundtracks match.
Is the Risk Analyzer free?
Yes. The analyzer is free to use and requires no account.