Auto-Blur
On-deviceBlur or pixelate faces, people, or anything sensitive in a photo before you share it — an on-device object-detection model can mark people automatically, and you can always draw, move, resize, or remove boxes by hand. Nothing is uploaded; the redacted image is flattened and saved straight from your device. No uploads, no account.
About this tool
What you provide
- A photo.
- Boxes you draw, move or resize yourself, and boxes from the automatic person detection.
- A style: blur or pixelate.
What you get
- A flattened PNG in which the marked regions are permanently blurred or pixelated.
Limits
- Detection is beta and uses a general-purpose model: boxes cover the whole person, not just the face — draw your own boxes for face-only redaction.
- It only produces boxes; it never identifies or recognises anyone, and no face image is stored anywhere.
- The model (about 43 MB) downloads once, and photos larger than 4096 px are downscaled to that.
How to use it
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Add the photo
Drop a photo on the dropzone, or tap it to choose an image file; the photo opens in the box editor.
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Mark what to hide
Drag on the photo to draw a box over anything to hide, drag a box to move it, drag its corner to resize, or tap × to remove it.
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Or let it find people
The first time, Download engine (~43 MB · one time) stands in place of the detect button; once it is cached, tap Detect people (beta) to add a box around each whole person, which you can then move, resize or delete.
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Apply and save
Choose Blur or Pixelate as the redaction style, tap Apply redaction, then save the flattened PNG in which those regions are permanently covered.
Frequently asked questions
Is Auto-Blur free, and does it identify who is in the photo?
Auto-Blur is free and only detects people in a photo so it can blur them; it does not identify or recognize anyone.
Does this tool upload my photos to a server?
No, both detection and blurring run on your device, so your photo stays local.
How do I blur people in a photo before sharing it?
Open Auto-Blur, choose your photo, and it detects people so you can blur them before sharing — all on your device.