Softonic

Image Pixelator

Step 1 / 3

Pixelation replaces every block of pixels with their average colour. Used lightly, it is the classic “8-bit retro” art style; used aggressively over a face or a license plate, it is a redaction. This tool does both, pick a block size from 2 to 100, draw a region or apply globally, and the irreversible result is yours to download.

How to pixelate an image

  1. 1

    Upload the image

    JPG, PNG or WebP.

  2. 2

    Pick block size

    2-4 for retro pixel art, 20-40 for face censoring, 60+ for heavy redaction.

  3. 3

    Optional: draw a region

    Full image or one or more rectangular areas.

  4. 4

    Export

    PNG preserves the hard edges of pixel blocks; JPG smooths them slightly.

Pixelation strengths for different goals

Block size by purpose

Goal Block size on a 1080-pixel wide image
Retro 8-bit art 4-8 px
Mosaic effect (background use) 10-20 px
Face censor in a group photo 25-40 px
Bold redaction for privacy 60+ px
License plate obscuring 30-50 px (plus solid overlay)

Pixelation vs blur

Both are “smoothing” filters, but they leak different amounts of information:

  • Light pixelation (block size < 10% of subject size) can be reversed by neural networks trained on adversarial pairs. Do not use for security.
  • Heavy pixelation (block size > 25% of subject) is practically irreversible.
  • Solid-colour fill is the only provably irreversible redaction.

Retro art recipe

  1. Reduce image dimensions to 100-200 pixels wide.
  2. Apply large-block pixelation (equivalent to the downscale ratio).
  3. Scale back up to target size using nearest-neighbour upscaling.
  4. Reduce the palette to 16-32 colours for an authentic old-console look.

Selective pixelation

Most social-platform moderation teams expect strong pixelation (or a black bar) over faces in news photos. A 30-40 px block over a 150-px-tall face is the commonly accepted minimum.

Frequently Asked Questions

Only with large blocks. Light pixelation can be partially reversed by AI tools trained on similar content. For real redaction of passwords, identifiers or faces, use a solid fill or pixelate with block sizes above 25% of the subject.

Combine small-block pixelation with a 16 or 32 colour palette reduction. Classic NES games used a 54-colour master palette and 4 colours per sprite; aiming for similar constraints produces that authentic look.

This tool handles still images only. For GIFs, you would need a frame-by-frame process, consider a video editor or dedicated GIF tool.

No. The tool operates on a copy; your upload stays untouched on your device. The pixelated result is a new file.

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