🙈 Image Tools
Blur Faces in a Photo — Free & Private
Anonymize a photo by automatically detecting and blurring every face. Detection and blurring both run in your browser with an on-device model — the whole point is privacy, so nothing is ever uploaded.
✓ Free forever✓ No upload✓ No signup✓ On-device AI
Quick answer: To blur faces in a photo, drop your image above, choose a blur strength, and click Blur Faces. An on-device model detects each face and blurs it right in your browser — nothing is uploaded — then you preview and download the anonymized photo.
How to Blur Faces in a Photo
1
Add Your Photo
Drop a JPG, PNG, or WebP with people in it, or click to browse.
2
Choose Blur Strength
Pick light, medium, or strong blur for the detected faces.
3
Blur Faces
Faces are detected and blurred in your browser — nothing uploaded.
4
Download
Check the preview, then download the anonymized photo.
Why Use Convertlo?
- 🔒 100% Private — photos never leave your browser
- 🆓 Free forever — no account, no watermark, no limits
- 🙈 Automatic detection — finds and blurs every detected face
- 🎚️ Adjustable strength — light, medium, or strong blur
- 👀 Preview first — review before you download
- 📱 Works on mobile — any modern browser, any device
Features
100% Private
No server, no upload — photos stay on your device.
Auto Detect
On-device model finds faces automatically.
Blur Strength
Light, medium, or strong anonymization.
Live Preview
See the blurred result before downloading.
Fast
Detects and blurs in a few seconds.
Mobile-Ready
Works on iPhone, Android, tablet, and desktop.
Frequently Asked Questions
Yes — completely free, no limits, no watermarks, and no account required. Convertlo runs entirely in your browser, and your photos never leave your device.
No. Face detection and blurring both happen locally in your browser using WebAssembly and the HTML canvas. Your images never leave your device — which is exactly what you want when the whole point is privacy.
It uses a compact on-device face-detection model (the Tiny Face Detector) to locate faces in the photo, then applies a strong blur over each detected face region. No cloud service or account is involved.
Automatic detection works best on clear, front-facing faces. Very small, turned, or partly hidden faces can be missed. Always review the preview before you download, and use a higher-resolution photo for the best detection.
Yes. Pick light, medium, or strong blur. Strong is best when you need faces to be completely unrecognizable for privacy; light is enough for a subtle effect.
JPG, PNG, and WebP all work. The blurred image is saved as a PNG so quality is preserved.