HandyjarFind a tool

Pixelate or blur image regions.

Choose the areas you want to change. Adjust each visual effect and save your image, right here in your browser.

Image editor

No image selected.

The editor shows the original. Drag a box or its handles, or use exact pixel fields. Apply effects to update the result below.

Your image and region selections will appear here.

Selected region settings

Pixelate: block size. Blur: sampling radius. Both are measured in pixels of the full-size image, so large photos need larger values. Low values leave details readable.

Choose an image to begin.

Result

Visual effect only. Blur and pixelation are not secure redaction.

Apply effects to create a PNG preview.

A few regions. Your own effect.

  1. Open a local image, then add a region.
  2. Move and resize its box, or enter exact pixels. Select pixelate or box blur and set its strength. Add more regions as needed.
  3. Apply effects to inspect the result, then download the PNG. Edits hide outdated results; apply again to refresh.
What does strength change?

Pixelation averages each square block; strength is its side length in source pixels. A block size of 1 leaves pixels unchanged. Box blur averages nearby pixels; strength is its radius. Sampling stays inside each region. Values beyond a region's dimensions already mix its entire extent. Overlapping regions apply in list order. Repeated exports always begin from the original image.

Can I use this for secure redaction?

No. Blur and pixelation are visual effects, and details may remain recognizable or recoverable. Low strengths in particular, such as a box blur of a few pixels, leave text and faces readable; check the result at full size. Do not rely on these effects to protect secrets or identifying information.

What happens to the format and image quality?

The result is a full-size PNG with transparency, without source metadata. Only selected regions change relative to the decoded image. Browser decoding and sRGB output can change wide-gamut or HDR colors. Animated images become the single frame shown in the editor. PNG files may be larger than the input; this is not a compression tool.

Which images can I open?

JPEG, PNG, WebP and browser-supported formats, alongside TIFF, AVIF and SVG. Unsupported or damaged files show an error. Available memory and browser capabilities determine what can open; there is no imposed file-size cap. Cancel & clear stops processing and releases the image.

Does my image leave this device?

No. Image decoding, effects and encoding run in your browser. Files and names are not uploaded, logged or saved by this tool. Download only saves the result when you choose it. Clear the image or leave the page to release its working data.