Face Detection Tool
Upload a photo or use your webcam to detect and count every face. See bounding boxes with confidence scores drawn around each detected face. Runs 100% in your browser using MediaPipe AI.
Drop a photo here or click to upload
Works best with clear, well-lit photos
How Face Detection Works
This tool uses Google's MediaPipe Face Detection model, one of the most accurate and efficient face detection systems available. The model uses a lightweight neural network architecture called BlazeFace that was designed to run in real time on mobile devices. It can detect multiple faces simultaneously, even at various angles and sizes.
MediaPipe runs entirely in your browser using WebAssembly. The model is very small (under 1 MB) and loads almost instantly. No images or video frames are ever sent to any server. Your camera feed stays 100% local.
What Gets Detected
- Face bounding boxes — Rectangle around each detected face
- Confidence scores — How certain the model is about each detection (0-100%)
- Face count — Total number of faces found in the image
- Multiple faces — Detects all visible faces in group photos
- Various angles — Works with frontal, profile, and slightly tilted faces
Fun Uses for Face Detection
Try it with group photos to see how many faces the AI can spot. Use it at events, parties, or family gatherings for a fun face count. Teachers can use it to quickly count students in a class photo. Photographers can verify everyone is in the frame. It is also great for educational purposes — learn how AI identifies faces in images.
The webcam mode lets you experience real-time face detection. Move around, bring friends into the frame, and watch the bounding boxes update in real time. It demonstrates how modern AI can process video at high frame rates directly on consumer hardware.
Tips for Better Detection
Good lighting is the most important factor. Ensure faces are well-lit and not heavily shadowed. The model works best when faces are at least 20 pixels wide. Very distant or blurry faces may not be detected. Sunglasses and hats are usually fine, but heavy face coverings may reduce accuracy.