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Face Finder
Search a whole batch of images — a single photo, a multi-select, an entire folder, or a ZIP — for a specific person. Give it reference photos of who you are looking for (or pull a public-figure image from Wikidata) and it detects every face, computes an ArcFace identity embedding, and flags the images that contain a match. It is the static-image counterpart to the Video Person Tracker, and like that tool it runs entirely in your browser: your reference photos and your image set are never uploaded.
① Who to find (reference people)
… or pull a public figure from Wikidata
② Images to search
No images added yet.
How it works & responsible use
Face Finder detects faces with MediaPipe, aligns each to a standard template, and computes a 512-dimension ArcFace embedding — a numerical fingerprint of the face. It compares every face in your image set to the embeddings of your reference photos using cosine similarity, and flags matches above a threshold you control. Everything runs in your browser through WebAssembly; no image is ever uploaded. Use it on images you are authorised to analyse — your own photo library, a consented dataset, or open-source material for legitimate research — and respect privacy and applicable law (biometric processing is regulated in many jurisdictions). It is an investigative aid that produces probabilistic leads, not identity proof, and should be corroborated.
Frequently asked questions
What can I search?
A single image, several selected images, an entire folder, or a ZIP archive of images. Each is scanned locally for faces that match your reference people.
Where do reference faces come from?
You add your own photos of the person (one or several — more angles improve accuracy), or you search Wikidata for a public figure and use their freely-licensed Commons image as the reference, the same lookup the Video Person Tracker uses.
Is anything uploaded?
No. Face detection and ArcFace recognition run entirely in your browser via WebAssembly. Your reference photos and the images you search never leave your device. The only network calls are to load the models once and, if you use it, the Wikidata lookup.
How accurate is it, and what is the threshold?
ArcFace is strong but not infallible — lighting, angle, age, and low resolution affect results. The similarity threshold lets you trade precision for recall; raise it to reduce false matches, lower it to catch more candidates. Treat results as leads to verify, not proof.
Is this legal to use?
Searching images you own or are authorised to process for a specific person is generally fine, but biometric face matching is regulated (e.g. GDPR, the EU AI Act). Do not use it to identify strangers without a lawful basis, to build a face database, or for surveillance. You are responsible for lawful use.