Online Tool Store
Face Blur Tool
Pixelate faces or any sensitive area in a photo by dragging a selection over each one, with undo support and instant PNG download. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Click and drag over each face on the preview to pixelate it. A sample is shown below.
How the face blur tool works
- Upload a photo.
- Click and drag a rectangle over each face you want to hide.
- Download the result once every face is pixelated.
The method
Each selected region is divided into small blocks, and every pixel within a block is replaced with the block's average color - the classic mosaic/pixelation effect, applied only within your selected rectangle.
FAQ
Does this detect faces automatically?
No. You draw a rectangle over each face by clicking and dragging, and that region is pixelated. Automatic face detection needs a machine-learning model, which this lightweight tool doesn't load.
Can I undo a mistake?
Yes. "Undo last blur" reverts the most recent pixelated region, one step at a time.
Why pixelation instead of a soft blur?
Pixelation (mosaic blur) is generally considered harder to reverse than a Gaussian blur, which can sometimes be partially undone with sharpening filters - making it a more privacy-conscious default for faces.
Is my photo uploaded anywhere?
No. Every pixelated region is applied directly on a canvas in your browser - your photo never leaves your device.
How we compare
| Feature | Online Tool Store | Photo editing apps | Automatic AI face blur tools |
|---|---|---|---|
| No file upload - runs in your browser | ✓ | Varies | ✗ |
| Full manual control over exactly what's blurred | ✓ | ✓ | Limited |
| Free, no install | ✓ | Often paid | Varies |
For quick, private control over exactly which faces get hidden, Face Blur Tool skips uploading anything.