Free Face Blur Tool - Automatically Blur Faces in Photos Online
Detect and blur faces in any photo using AI — entirely in your browser. Protect privacy in group shots, screenshots, ID documents, and social media images. No uploads needed. Launching May 1st, 2026.
What is Face Blur Tool?
Our Face Blur Tool uses face-api.js, a TensorFlow.js-powered face detection library, to automatically locate faces in any photo and apply a strong blur or pixelation effect over them. The entire AI model runs inside your browser — no image is ever sent to a server. Upload a photo and let the tool detect all faces automatically in seconds.
Once faces are detected, each one gets a blur overlay that you can adjust in intensity. You also have a manual brush mode for blurring sensitive areas that aren't faces — such as license plates, documents, or name tags. Combine automatic detection with manual touch-ups for complete privacy protection.
The tool is designed for photographers sharing group shots where not all participants have given consent, journalists protecting sources, social media users removing identifiable information, and privacy-conscious people cleaning company screenshots before sharing. Processing is fully client-side — no face data, biometric information, or images are stored or transmitted.
Powerful Features
Everything you need in one amazing tool
Auto Face Detection
AI-powered face detection identifies all faces in the photo automatically — no manual selection needed
Manual Blur Brush
Paint over any area — plates, text, documents — for precise blur control beyond face detection
Adjustable Blur Strength
Control blur intensity from light softening to heavy pixelation for complete anonymization
Multiple Faces
Detects and blurs all faces in a group photo at once — handles crowds and group shots
PNG / JPG Download
Download the privacy-protected image as PNG or JPG, ready to share or publish
Zero Data Transmission
AI runs via TensorFlow.js in the browser — no face data or biometrics ever leave your device
How It Works
Get started in 4 easy steps
Upload Photo
Drag-and-drop or select a JPG, PNG, or WebP image containing faces
Auto-Detect Faces
Click "Detect Faces" — AI locates all faces and marks them instantly
Adjust & Fine-Tune
Adjust blur intensity and use the manual brush for any remaining sensitive areas
Download
Download the protected image as PNG or JPG
Why Choose Our Face Blur Tool?
Stand out from the competition
Accurately detects faces in portraits, groups, and even partially obscured faces
No biometric data is ever transmitted — all processing happens locally in your browser
Supplement AI detection with a manual brush for plates, documents, and other sensitive content
Handles multiple faces in a single photo — perfect for team or event photos
Control blur strength from subtle softening to full pixelation for complete anonymization
Download the privacy-protected image as PNG or JPG immediately after processing
Perfect For
See how others are using this tool
Group Photo Privacy
Share group photos publicly while protecting people who have not given consent
Journalism & Media
Protect sources and anonymous individuals when publishing news photos
Corporate Screenshots
Blur employee faces or personal data in screenshots before sharing in presentations
Document Privacy
Redact ID photos and personal images from scanned documents before sharing digitally
Social Media Sharing
Anonymize photos before posting to social media to respect others' privacy
Content Creation
Blur background individuals in thumbnail images and video screenshots for YouTube or streaming
Frequently Asked Questions
Everything you need to know about Face Blur Tool
No. The face detection AI (face-api.js with TensorFlow.js) runs entirely in your browser. The model file downloads once (~6MB) and is cached — after that, everything works offline. No image data or biometric information ever leaves your device.
The AI is accurate on standard portrait and group photos with clearly visible faces. Detection may miss very small faces, extreme angles, or heavily obscured faces. Use the manual blur brush to cover any missed areas.
Yes. The manual blur brush lets you paint over any area of the image — license plates, name tags, phone numbers, documents, or anything else you want to obscure.
Yes, the face detector processes the entire image and marks all detected faces simultaneously. Performance on photos with 10+ faces may take a few extra seconds.
The face detection model (~6MB) needs to download once. After that, it is cached in your browser and the tool works instantly — even offline.
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