Pixelate Part of an Image Online
Select one or more areas of an image and pixelate them with an adjustable block size, entirely in your browser.
Drag & drop an image here
or
PNG, JPG, WebP, GIF supported — up to 30MB
Your image stays on your device
Related Tools
Learn more about the Pixelate Image
Pixelate Part of an Image, Free
Upload a PNG, JPG, WebP, or GIF, then drag to select one or more rectangular areas. Each selection is shrunk down significantly and scaled back up using nearest-neighbor rendering — the standard pixelation technique — so the region turns into large, blocky, unreadable squares. Adjust the block size per region from small (subtle) to large (heavily blocked).
Everything runs locally via the Canvas API — your image is never uploaded to a server. Like blur, pixelation is a visual effect: at a coarse enough setting it's effectively unreadable, but it isn't secure redaction and shouldn't be relied on for information that must never be recoverable. For that, use Redact Image to replace the pixels outright with a solid fill instead.
When to Pixelate an Image
The Classic Censoring Look
Pixelation is instantly recognizable as "this was hidden on purpose" — useful for faces or license plates in a screenshot.
Obscure a Face or Detail
Reduce a region to large color blocks so the original content is no longer recognizable at normal viewing size.
Stylistic Reveal
A coarser pixelation can hint at content (for a "reveal" or thumbnail) without fully showing it.
Features
Select Any Area
Click and drag to select a region, move it, resize it from any corner, or delete it.
Multiple Regions
Pixelate as many areas as you need in one image, each with its own block size.
Adjustable Block Size
A Small-to-Large pixel size slider per selected region.
No Server Upload
Pixelation runs via the Canvas API in your browser — the image is never sent anywhere.
Download in Any Format
Export the result as PNG, JPG, or WebP, at the original image resolution.
Pixelation is a visual effect, not secure redaction. For sensitive information you need to permanently hide — documents, screenshots, private messages, IDs — use Redact Image instead.
How to use
Paste your input in the left editor. The output appears automatically on the right. Use the toolbar buttons to copy, download, or transform the result.
- Paste or type your content in the input editor on the left.
- The formatted output is generated automatically.
- Use Copy, Download, or other actions from the output toolbar.
- Click the expand icon to view the output in fullscreen.
FAQ
Is this image pixelation tool free?
Yes, it is completely free to use with no limits, signup, or account required.
Is my image uploaded to a server?
No. Pixelation runs entirely in your browser using the Canvas API. Your image is never uploaded or sent to a server.
How do I pixelate part of an image?
Upload an image, then click and drag on it to select a rectangular area. Drag the selection to move it, drag a corner handle to resize it, and adjust the Pixel Size slider — do this for as many areas as you need.
How does the pixelation algorithm work?
Each selected region is scaled down significantly, then scaled back up to its original size using nearest-neighbor rendering — the same technique used for the classic blocky censoring look, rather than a blur.
Is pixelating an image secure enough to permanently hide sensitive information?
No. Like blur, pixelation is a visual effect, not secure redaction. For information that must be permanently unreadable, use Redact Image instead, which replaces the pixels outright.
Can I undo a pixelation or remove a selection?
Yes. Undo steps back through your edits one at a time, Reset clears every selection, and each selection also has its own delete button.
What format does the pixelated image download as?
Choose PNG, JPG, or WebP at download time, at the image's original resolution, with an adjustable quality setting for JPG/WebP.