Image Pixelator — Mosaic Effect Free

Apply a pixelation or mosaic blur effect to any image. Blur faces, license plates, or create retro pixel art aesthetics.

Drop your image here

JPG, PNG, WebP — Max 10MB

Pixel Block Size: 10

Subtle (2) Medium (10) Heavy (40)

Medium pixelation — good for hiding faces

Deleted immediately after processing. Never stored or shared.

How to Use Image Pixelator

Upload ImageSelect or drag and drop your image file (JPG, PNG, WebP — max 10MB)

Choose Block SizeSlide to adjust pixelation level — 2=subtle, 20+=heavy mosaic

DownloadSave your pixelated image instantly — no email required

Pixelate Image Online is a free online tool that works entirely in your browser — no signup, no data uploaded, no limits.

Image Pixelator — Mosaic Effect Free — No Software Required

Apply pixelation or mosaic blur to any image. Pixelation divides the image into square blocks and replaces every pixel in each block with the block average color. The result is the recognizable blocky mosaic blur effect used for privacy protection in news media, documentaries, and social media. Block size controls the level of anonymization — small blocks create a subtle pattern while large blocks make content completely unidentifiable. Uses include hiding faces and personal information in screenshots before sharing, creating retro 8-bit pixel art aesthetics, and mosaic blur effects for graphic design.

Common Uses

Blur faces and personal information in screenshots
Create retro pixel art aesthetics for design projects
Anonymize license plates before sharing dashcam footage
Pixelate sensitive text in document screenshots

100% Free — No Signup, No Watermark

Tooliby processes your image on our secure server and deletes it immediately after you download. Your images are never stored, never shared, and never used for any other purpose. No account creation, no email verification, no credit card. Just upload and use.

Frequently Asked Questions

The image is divided into square blocks. Every pixel within each block is replaced with the average color of that block. Block size determines how blocky the result looks.

Block size 10-15 makes faces and text unreadable while keeping the general shape visible. Block size 20+ makes the content completely unidentifiable.

No. Once pixel information is averaged and lost, it cannot be recovered. Always keep your original.