Pixelate an image online for free

Choose a photo, set the mosaic block size, and pixelate the whole image or only the faces, text, license plates, and other areas you want to hide.

or drop one image here

JPG, PNG, WebP, GIF or BMP · up to 100 MB

The image is processed locally in your browser

Pixelate exactly the parts you need

Whole-image and selective modes

Apply the effect across the entire photo, or use a rectangle or brush to cover only the details you want to obscure.

Adjustable mosaic block size

Increase or decrease the block size and check the live preview until the covered details are hard to recognize.

Local browser processing

The image is decoded, edited, and exported on your device without being uploaded to an ImageNow server.

How it works

  1. Choose or drop one JPG, PNG, WebP, GIF, or BMP image.
  2. Choose Whole image or Selected areas.
  3. Set the mosaic block size while checking the live preview.
  4. In Selected areas mode, drag a rectangle over regular regions or brush over irregular shapes.
  5. Check the result at full size, then download the pixelated image without a watermark.

What a pixelate or mosaic effect does

Pixelation groups neighboring pixels into larger blocks of color, creating what is often called a mosaic effect. Applied to selected areas, it makes faces, text, license plates, and other details harder to recognize without cropping the rest of the image.

Pixelate a whole photo or only part of it

Whole-image mode applies one block size across the complete picture. Selected-area mode keeps the rest of the image clear while rectangles and brush strokes define the portions to process. This is useful for faces, chat screenshots, addresses, account numbers, documents, and license plates.

Choose a strong enough mosaic for sensitive details

Pixelation is a visual obscuring technique, not a universal security guarantee. Small blocks can leave shapes or characters recognizable, and some simple effects may be partially inferred. Use larger blocks, inspect the downloaded image at full size, and avoid publishing the original when information is genuinely sensitive.

Which files you can open here

The editor accepts one browser-decodable JPG, JPEG, PNG, WebP, GIF, or BMP image up to 100 MB. JPG, PNG, and WebP downloads keep their format; GIF and BMP downloads become PNG, and animation becomes a still image. The new file does not copy source EXIF, camera, or location metadata.

Frequently asked questions

How do I pixelate an image online?

Choose an image, keep Whole image selected, and set the mosaic block size. The preview updates immediately; when it looks right, select Download pixelated image.

Can I pixelate only part of an image?

Yes. Switch to Selected areas, drag a rectangle over regular regions, or use the brush for irregular shapes. The rest of the image stays unchanged.

Can I pixelate a face, text, or license plate?

Yes. Selected areas mode works for faces, text, license plates, addresses, and other details. Check the downloaded image at full size before sharing it.

What pixel block size should I use?

Smaller blocks preserve more recognizable detail, while larger blocks create a stronger mosaic. Start with the live preview, then increase the size until sensitive shapes or characters are no longer readable.

Can a pixelated image be restored?

The exported image does not contain the original pixels inside the processed areas, but weak pixelation can still leave recognizable patterns. Use larger blocks when it matters, check the download at full size, and keep the original file private.

Which image formats and file sizes are supported?

You can use one JPG, JPEG, PNG, WebP, GIF, or BMP image up to 100 MB. JPG, PNG, and WebP keep their format; GIF and BMP become PNG. Animation is saved as a still image, and source metadata is not copied.

Is my image uploaded to a server?

No. Pixelation and export happen locally in your browser. The selected file does not need to be sent to an ImageNow server for processing.

Does the downloaded image contain a watermark?

No. ImageNow does not add a watermark. The download contains the visible image result, while source EXIF, camera, and location metadata are not copied into the new file.