📷Drop an image hereJPG, PNG, WebP, BMP or GIF. The image stays on your device.
Drag on the picture to cover the part you want to hide. You can add as many areas as you like.
Tested in November 2026. Blur, pixelate, black box, undo and download were tested on generated images, with rectangle, ellipse and brush shapes.
How to blur or pixelate part of an image
- Drop an image into the box.
- Choose an effect: Blur, Pixelate or Black box.
- Choose how to draw: Rectangle, Ellipse or Brush. Set the strength, and the brush size if you use the brush.
- Drag over the part of the picture you want to hide. Repeat for other parts. Use Undo if you make a mistake, or Reset to start over.
- Click Download PNG or Download JPG.
Tips for better results
- For faces and plates, use a high strength so details cannot be seen.
- Use the black box for card numbers, addresses and passwords. It covers the area fully.
- Cover a little more area than you think you need.
- Use Apply to whole image for a soft background blur or an overall pixel effect.
Limits to know about
- Light blur or light pixelation may still let some details be guessed. Use a strong setting or a black box for private information.
- Once you download the file the change cannot be undone, so keep your original.
- The tool works on regions you draw. It does not find faces for you.
- Very large pictures are shrunk for editing speed, so the saved image can be smaller than the original.
Privacy
Your image is edited inside your browser and is not uploaded to ToolsRiver.
Frequently asked questions
How do I hide a face in a photo?
Choose Pixelate or Blur, draw over the face, raise the strength, then download.
Which hides more, blur or pixelate?
At the same strength both hide details well. The black box hides the most because it removes the pixels completely.
Can I undo a change?
Yes, with Undo or Reset while you are editing. After download, the saved file cannot be changed back.
Does it save in PNG or JPG?
Both. PNG keeps full quality. JPG makes a smaller file.
Is it free?
Yes, with no sign-up and no watermark.
About this tool
ToolsRiver Blur and Pixelate Image hides parts of a picture with blur, pixel blocks or a solid box. It runs in your browser so private pictures stay on your device.