Pixelate Images to Hide Faces, License Plates, and Details
Need to conceal a face in a photo, obscure a vehicle's license plate, or make specific details in a screenshot harder to read? Imagesmint's Pixelate Image tool lets you apply a block-style mosaic to a chosen part of an image or to the entire image. You can adjust the affected area's shape, move and resize the selection, and control the size of the pixel blocks.
Pixelation reduces the detail within an area by sampling the image at a lower resolution and enlarging the result into visible blocks. The effect differs from a conventional blur, which softens details rather than creating a block pattern. You can preview your settings, apply the effect, undo recorded changes, and download the finished image as a PNG file.
Practical uses for an image pixelator
Pixelation is useful when you want to change how a particular part of an image appears without editing every other area.
- Faces in photos: use a circular or oval selection to cover a face or another rounded area.
- Vehicle license plates: select a rectangular area that covers the plate and its characters.
- Screenshots: obscure parts of a screen containing usernames, numbers, or other details you do not want to display clearly.
- Digital artwork: create a mosaic effect for visual styling or to give an image a deliberately pixelated appearance.
- Images prepared for sharing: apply the effect to selected details before publishing a photo or screenshot.
If you prefer a softer effect without visible square blocks, try the separate blur image tool. The right choice depends on the appearance you want to achieve.
Choose a rectangular or circular selection
Rectangle or square
This shape works well for objects with straight edges, including license plates, text lines, and sections of a screenshot. Drag the selection to reposition it, then use the corner handles to adjust its width and height.
Circle or oval
Use this option when the area you want to affect is rounded, such as a face. Move the selection over the target and resize it to fit. The circle or oval determines the boundary of the affected area; the mosaic blocks inside that boundary remain square.
Check the edges carefully before applying pixelation. A selection that is too small may leave visible details around the boundary, while an oversized selection can affect parts of the image you intended to keep unchanged.
Adjust the pixel size
The pixel-size slider ranges from 2 to 100 pixels. For faster adjustments, you can also select one of the preset values: 4, 8, 12, 24, 40, or 64 pixels.
Smaller values generally create finer blocks and preserve more visible detail. Larger values create a coarser mosaic and conceal more detail within the selected area. The best setting depends on the image dimensions and what you are trying to obscure.
Live preview lets you compare settings before committing a change. When live preview is turned off, you can still adjust the selection and pixel size; use the Apply button to commit the effect to the working image.
How to pixelate an image
- Upload an image. Choose a JPG, PNG, or WebP file from your device.
- Position the selection. Move the selection box over the part you want to pixelate and resize it with the corner handles.
- Choose the shape. Use a rectangle or square for straight-edged objects, or a circle or oval for rounded areas.
- Set the pixel size. Adjust the slider or choose a preset to control how coarse the mosaic looks.
- Preview the effect. Check the affected area and make sure the selection covers the details you want to obscure.
- Apply the change. Click Apply to add the pixelation to the working image.
- Review and download. Use Undo or Redo to navigate recorded changes, then download the result as a PNG.
To pixelate everything at once, enable the Whole Image option. The selection box is no longer needed because the effect is applied across the full image.
File limits, output, and privacy
The tool accepts JPG, PNG, and WebP images. Files larger than 35 MB are rejected, as are images exceeding 40 million pixels. If the image dimensions are too large, reduce them with the image resizer. If the file size alone is the problem, the image compressor may help reduce the size before you upload it.
Image processing takes place in your browser; the tool's processing code does not upload the selected image to the Imagesmint server. The download is always a PNG file, regardless of the original format.
If you are pixelating sensitive information, do not assume that a subtle mosaic completely conceals it. Increase the block size as needed, inspect the finished result at full size, and make sure that no characters or other identifying details remain readable before sharing the image.
Frequently asked questions
How do I pixelate only a face without changing the rest of the photo?
Upload the image, select Circle / Oval, and move the selection over the face. Resize it until it covers the intended area, choose an appropriate pixel size, and inspect the preview. Click Apply only after checking the edges and any details you want to conceal.
How can I hide a license plate in a photo?
Choose Rectangle / Square and position the selection over the entire plate, including its characters. Increase the pixel size if the numbers are still readable. Check the final image carefully before publishing or sharing it.
Why can I not see pixelation in the preview?
Make sure an image has been uploaded, the selected area is positioned correctly, and Live Preview is enabled. If live preview is off, the effect may not appear over the image before you apply it. Turn the option back on or click Apply to commit the effect.
How do I make the pixel blocks larger?
Increase the value on the pixel-size slider or choose a larger preset, such as 24, 40, or 64 pixels. Larger values produce a coarser mosaic and generally reveal less detail inside the affected region. Review the result before downloading it.
Why is my image rejected during upload?
Check that the file is JPG, PNG, or WebP and is no larger than 35 MB. Its dimensions must also remain within the 40-million-pixel limit. If necessary, resize the image and try again.
Can I pixelate the entire image instead of selecting an area?
Yes. Enable Whole Image, adjust the pixel size, and preview the effect. The tool will apply pixelation across the full image rather than restricting it to the selection box.
Can I undo pixelation after applying it?
Yes. Use Undo to return to a previous recorded state and Redo to restore a change. You can also use Start Over to clear the current editing session and upload an image again.
Can I download the pixelated image as JPG or WebP?
The tool downloads the result as PNG, even when the original image was JPG or WebP. To create another supported format, use the image format converter after downloading the PNG.