Can I adjust the blur strength?

Yes. Use the blur intensity slider to control how strong the blur effect is, from subtle softening to heavy pixelation.

Are photos uploaded for face detection?

No. The face-api.js library and detection model run locally in your browser. Your photos never leave your device.

Face Blur - Anonymize Faces in Photos Free

Q: How does the face detection work?

The tool uses face-api.js with the SSD MobileNet model to automatically detect faces in images. Detection runs entirely in your browser with no server involved.

Q: What if a face is not detected?

You can manually add blur areas by clicking and dragging on the image if automatic detection misses a face.

Automatically detect and blur faces in photos for privacy protection. AI-powered face detection. Runs 100% in your browser — no upload, no account, fully private.

No Upload 100% Private Free

Drop your photo here

JPG, PNG, or WebP — faces will be detected automatically

How Face Blur Works

Upload Your Photo

Select a JPG, PNG, or WebP photo. It stays on your device — nothing is uploaded.

AI Detects Faces

face-api.js automatically detects all faces in the photo using a lightweight SSD MobileNet model.

Download Anonymised Photo

Adjust blur intensity and download the anonymised photo as PNG.

Frequently Asked Questions

How does the face detection work?

The tool uses face-api.js with the SSD MobileNet model. The model loads from CDN (~2 MB), runs locally, and detects faces without any server communication.

What if a face is not detected?

Face detection works best on clear, front-facing photos. Partially obscured, very small, or side-profile faces may not always be detected. Try the "Re-detect faces" option with the image zoomed/cropped closer.

Are photos uploaded for processing?

No. The face-api.js model runs entirely in your browser using JavaScript and Canvas. Your photos never leave your device.

What output format is used?

The blurred photo is saved as a high-quality PNG to preserve image quality.