Mosaic / Blur
Pixelate or blur faces, license plates, private info in your photos — for SNS, marketplace, screenshots.
Your images are not uploaded to any server. All processing runs in your browser.
💡 Click-drag (or touch) on the photo to draw a box over the area to censor. Multiple boxes supported. Undo removes the last box. Use + Zoom in for precise small-area work.
100%
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Common use cases
| Situation | Recommended type |
|---|---|
| Marketplace listing — hide faces | Mosaic strength 12-20 |
| Car photo — hide license plate | Solid black or mosaic 30+ |
| ID card / passport — partial cover | Solid black (irreversible) |
| SNS / family — hide kid's face naturally | Blur strength 25 |
| Screen capture — emails, phone numbers | Mosaic strength 15 or solid black |
| Shipping label — hide address | Solid black (safest) |
Related tools
Frequently asked questions
Are my files uploaded?
No. All processing runs in your browser via Canvas API.
Mosaic vs blur — what's the difference?
Mosaic = pixelation, strong block. Blur = Gaussian, natural soft. Solid black = irreversible, safest.
Can I cover multiple regions?
Yes. Drag boxes — each processed independently.
Can the censoring be reversed?
With sufficient strength, recovery is essentially impossible. Mosaic pixel 10+ / blur strength 20+. For ID numbers / plates, solid black is safest.
References
Last verified: 2026-05-10 / Browser native Canvas API + filter (no external libraries).
⚠️ For critical info (ID numbers, account numbers, license plates), use solid black. Mosaic at low strength may be reversed.