WIN-J TOOLS LOCAL & SIMPLE

Image pixelator

Apply pixelation or a solid black cover to a rectangular area of a photo. Select the region by dragging or entering percentages, then save an edited copy.

Free · no signupProcessed in your browser

Choose images PNG, JPEG or WebP, 15 MB per file. Animations are processed as still images.

Effect

Pixel block size

Left position, %

Top position, %

Region width, %

Region height, %

Output format

Drag on the preview or enter position and size percentages above to select a region. Generate the result before downloading.

This tool does not send entered values or selected files to a server. Save any results you need before closing the tab.

How to use

Choose a photo and drag over the area to cover. For keyboard operation, enter position and size percentages.
Set the pixel block size or select a solid black cover.
Generate the result, inspect the covered area closely and save a copy.

Worked example

For a 1000×800 image, left 25%, top 25%, width 50%, height 50% selects about x=250, y=200 with a 500×400 area.

Method and limitations

Pixelation downsamples the selected area and enlarges it without smoothing. Solid cover replaces the selected pixels with opaque black. The original file is unchanged.

Pixelation does not guarantee removal of information. For sensitive names or numbers, use an opaque cover and inspect the final image. One region is processed at a time; option changes rebuild from the original.

Frequently asked questions

How can I cover more than one area?

Save the first result, select that saved image and cover the next region. Check that sensitive content does not extend beyond the selected rectangle.