Free AI Face Similarity Checker

Compare one reference face against one or many photos. Get ranked AI face similarity scores directly in your browser—free, private and without signing up.

Quick answer: Upload a reference face and one or more comparison photos to get ranked face similarity scores in your browser. Free, private, no account.

Got a similarity score? Learn how to interpret your similarity score — accuracy, thresholds, and why scores change between photos.

High Accuracy

Fast Processing

Privacy Safe

How It Works

Comparison type

Reference Face

One photo

Upload Reference Photo

Drag & drop or click to select the face you want to compare against.

Faces to Compare

One photo

Upload Comparison Photos

Drag & drop or click to select the second photo to compare.

Ready to compare?

Detect faces and calculate similarity scores locally in your browser

Pro Tips for Best Results

Clear Face Visibility

Ensure faces are clearly visible and well-lit for accurate detection

Frontal Angles

Front-facing photos work better than profile or angled shots

High Resolution

Use high-quality images for better face detection accuracy

Single Person

Images with one clear face per photo yield the best results

How it works

Choose compare two photos or one face against multiple photos.
Upload a reference face and the comparison photo(s).
Click Compare Faces to run scoring locally and review ranked similarity scores.

Use cases

Compare two photos to see how closely the faces match
Score one reference face against a batch of candidates
Check LoRA or character consistency across generations
QA AI influencer or virtual model stills against a real ref
Rank variants by face match before picking winners

Face models and scoring run in your browser. Your photos are not uploaded for this tool.

Frequently asked questions

A face similarity checker compares faces in photos and returns a match percentage. Upload a reference face, add one or more comparison photos, and read ranked scores. Useful for creative QA, not legal ID verification.

Open this page, pick Compare two photos, upload a reference face and one comparison photo, then click Compare Faces. Scoring runs locally in your browser with no account.

Yes. Choose Compare one face with multiple photos, upload one reference, then add a batch of comparison photos. Results sort by similarity score so you can keep the best matches.

It is a 0–100 readout from embedding distance in your browser—not proof of identity. See our guide on accuracy, thresholds, and limitations to interpret your result.

Scores reliably rank variants within one batch, but lighting, angle, and illustrated styles shift the numbers. Use them to sort options, not as a legal identity claim. Learn how to interpret your similarity score in the linked guide.

No. Use the face similarity checker free in the browser.

Use clear, front-facing crops when possible. Profile shots, heavy occlusion, or tiny faces can fail detection.

Yes for this tool — images stay in the browser session and are not sent to TheFluxTrain for scoring.