Can pixelation be reversed?

Not once you have downloaded it — the pixels really are gone. But before you download, Ctrl+Z or “Undo” takes you back, and if you don't want one of the boxes, select it and press “Delete this block”.

Do I need an account? Is it paid? Any limits?

None of those. No sign-in, no payment, no usage cap, and we add no watermark.

Is my image uploaded to your server?

No. The whole thing is computed in your own browser — we never receive the file.

Can I pixelate a video?

This page is built to do one thing well — pixelating images. “Block size” is adjustable from 4 to 64 pixels, you can cover several areas at once, and all of it runs inside your own browser. For Gaussian blur, open the full editor (“Pro editor”, top right). For video, TutuCut covers the same ground with the same Tutu account.

Pixelate a photo · drag a box, mosaic in one go

Cover faces, licence plates and ID numbers. Runs locally — nothing is uploaded.

or start a blank document

What needs covering is usually very clear: an ID number, a phone number, an address, names in a chat, a licence plate. What they share is that once it's out there you can't take it back — so this step belongs before you send — not deleting after you've sent.

Everything happens in your own browser, so the picture never reaches a server. As soon as the image lands, a centred box covering 80% of it is already pixelated; drag a new box on an empty spot to cover one more area, or press “＋ N block(s)” to add another, and “Delete this block” removes the selected one (at least 1 always stays). “Block size” goes from 4 to 64 pixels, and you can type a box's X, Y, W and H directly. This page does mosaic only — for Gaussian blur, open the full editor (“Pro editor”, top right). For video, TutuCut does the same job with the same account.

Key features

Runs locally

Your image is never uploaded. Close the tab and nothing is left behind.

Adjustable block size

“Block size” from 4 to 64 pixels, with live preview as you drag the slider.

Cover several spots at once

Drag a new box on an empty spot to add one, or press “＋ N block(s)”; select one you don't need and press “Delete this block”.

Undo anytime

Covered the wrong spot? Ctrl+Z or “Undo” takes it back. Nothing is final until you download.

How to use

1
Pick an image

Drag it into the box, or just press Ctrl+V to paste.
2
Box what to hide

A centred box is already pixelated when you arrive: drag inside it to move it, drag its corners to resize; to cover somewhere else too, drag a new box on an empty spot.
3
Tune the block size

Too coarse or not coarse enough? Move the slider.
4
Download

Save it, or open it in the full editor to keep working.

FAQ

Can pixelation be reversed?: Not once you have downloaded it — the pixels really are gone. But before you download, Ctrl+Z or “Undo” takes you back, and if you don't want one of the boxes, select it and press “Delete this block”.
Do I need an account? Is it paid? Any limits?: None of those. No sign-in, no payment, no usage cap, and we add no watermark.
Is my image uploaded to your server?: No. The whole thing is computed in your own browser — we never receive the file.
Can I pixelate a video?: This page is built to do one thing well — pixelating images. “Block size” is adjustable from 4 to 64 pixels, you can cover several areas at once, and all of it runs inside your own browser. For Gaussian blur, open the full editor (“Pro editor”, top right). For video, TutuCut covers the same ground with the same Tutu account.

Try Pixelate a photo · drag a box, mosaic in one go now

No install · no sign-up · local stays local · free AI credits every day