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pixelate-webp

Pixelating a WebP reduces a region (or the whole image) to a grid of large squares — each square is the average colour of the original pixels it covers. Used to censor faces / license plates / sensitive info, and as a retro-game aesthetic effect. The ZTools Pixelate WebP tool offers full-image and region pixelation with configurable block size (4 px subtle to 64 px extreme). 16+ px is safe for face censoring; below that, ML upscaling can sometimes recover detail.

Use cases​

Censor faces in screenshots​

Sharing publicly; co-workers' faces visible. Drag a region, pixelate, save.

Hide license plates / addresses​

For real-estate / car listings. Block size 16-24.

Retro-game aesthetic​

Whole-image pixelation at block size 12-20 gives 8-bit look.

Privacy in stock photos​

Even stock-photo people sometimes deserve privacy.

How it works​

  1. Pick WebP — Loaded into canvas.
  2. Pick mode — Whole image OR drag a region.
  3. Block size — 4 px (subtle) to 64 px (extreme).
  4. Save — Output WebP with pixelation baked in.

Examples​

Input: Selfie, region around face, block 16

Output: Face becomes 6×6 grid of squares. Identity not recoverable.

Input: Whole 800×600 image, block 20

Output: 40×30 grid — 8-bit aesthetic.

Input: License plate, block 24

Output: Plate text unreadable; surrounding car visible.

Frequently asked questions​

Is pixelation reversible?

No — averaging is lossy. ML "depixelation" only invents plausible content, never recovers original. Heavy pixelation (≥16 px) is safe censorship.

How big a block for face censoring?

16-24 px on web-resolution. Test by zooming — if recognizable, increase block size.

Pixelation vs black bar?

Black bar fully destructive — preferable for high-stakes content. Pixelation can leak some info if block size too small.

Privacy?

All in browser.

Tips​

  • For censorship, block ≥16 px on faces and ≥24 on text.
  • Combine pixelation with slight blur for extra security.
  • Always pixelate a copy — irreversible.
  • For retro aesthetic, also reduce color palette — pixelation alone with full color looks plastic, not retro.

Try it now​

The full pixelate-webp runs in your browser at https://ztools.zaions.com/pixelate-webp — no signup, no upload, no data leaves your device.

Open the tool ↗

Last updated: 2026-05-06 · Author: Ahsan Mahmood · Edit this page on GitHub