How to Blur Faces in Photos — Automatic & Free
Publishing photos of events, protests, classrooms, or public spaces often requires blurring faces to protect people's identities — especially under GDPR, CCPA, and similar privacy regulations. Manually drawing blur boxes over every face in a crowd photo is tedious. ImgToolkit's face blur tool uses a neural network to automatically detect every face in a photo and apply a pixelation blur — saving you minutes of manual editing.
Quick Answer
Publishing photos of events, protests, classrooms, or public spaces often requires blurring faces to protect people's identities — especially under GDPR, CCPA, and similar privacy regulations. Manually drawing blur boxes over every face in a crowd photo is tedious.
Try it now — free, no signup
Your images stay on your device. Nothing is uploaded to any server.
Step-by-Step Guide
5 steps · takes under 1 minute
Open the Blur Face tool
Navigate to the Blur Face page. On first use, a face detection model loads from CDN — this takes 5–15 seconds once per session.
Upload your photo
Drop in a JPG or PNG. The tool works on single portraits and group/crowd photos with multiple faces.
Auto-detect faces
Click 'Detect & Blur'. The AI scans the image and identifies all visible faces, then applies a blur region over each one.
Adjust the blur strength
Use the blur intensity slider to increase or decrease the pixelation level depending on how much anonymization you need.
Download the result
Download the processed image. The blurred version saves at the same resolution as the original.
100% Private — Zero Uploads
ImgToolkit runs entirely in your browser using the Canvas API. Your images are never sent to a server, never stored in the cloud, and never seen by anyone else. This makes it safe for sensitive documents, client work, medical imagery, and confidential screenshots.
Pro tip
Use 75–85% quality for web images — you get 60–80% smaller files with no visible difference at normal screen sizes.
Format & File Size Comparison
Same 1080×1080px photo processed four ways
| Format | Quality | File Size | Notes |
|---|---|---|---|
| PNG (original) | Perfect | 4.2 MB | No compression — too large for web |
| Compressed PNG | Visually identical | 1.1 MB | −74% — transparency preserved |
| JPG (85% quality) | Excellent | 310 KB | −93% · Best for photos |
| WebP (85%)BEST | Excellent | 205 KB | −95% · Recommended for web |
Based on a 1080×1080px photo. Results vary by image content and complexity.
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Frequently Asked Questions
5 questions answered