See before and after
Drag across the preview to judge exactly how much detail the pixel effect removes.
Free • private • satisfyingly blocky
Pixelate Image Online
Turn any photo into bold mosaic pixels in seconds. Pick a block size, choose square or rounded pixels, compare the result live, and download a clean PNG.
✓ Your image stays on your device✓ No account or watermark✓ Full-size PNG export
03Watch the pixels appearDrag the divider to compare
LIVE
BeforePixelated
Pixelate a photo online without the fuss
This free image pixelator makes blocky mosaic effects directly in your browser. Use small pixels for a gentle low-resolution look, large blocks to hide details, or rounded pixels for a playful poster effect.
Make it feel yours
Switch between crisp square blocks and rounded mosaic dots, then dial in the perfect size.
Private by design
Your photo is processed locally. It is not uploaded to a server by this image pixelator.
How to pixelate an image online
- 1Upload a photo
Choose, drop or paste a JPG, PNG, WebP or GIF. The colorful demo is ready if you want to try the tool first.
- 2Set the pixel size
Choose Subtle, Classic or Chunky, then fine-tune the slider from tiny blocks to a bold mosaic.
- 3Choose a block style
Keep the classic square look or use rounded pixels, with an optional gap between the dots.
- 4Compare and download
Drag the before-and-after divider, then save the full-size pixelated image as a watermark-free PNG.
When should you pixelate a picture?
A pixelated effect can create retro social graphics, abstract backgrounds, game-inspired portraits and bold thumbnails. Larger blocks can also make details harder to recognize before you share a screenshot or photo.
Pixelation is a visual effect, not guaranteed redaction. If an image contains highly sensitive information, remove or fully cover that area before publishing it rather than relying only on pixelation.
Pixelate image online FAQ
How do I pixelate an image online?
Upload, drop or paste an image, adjust the pixel size and block style, compare the result, then select Download pixelated image.
Is this online image pixelator free?
Yes. It is free to use, needs no account and places no watermark on the downloaded PNG.
Does the tool upload or save my photo?
No. The pixelation happens locally in your browser. This tool does not upload or store your image.
Which image formats can I pixelate?
You can open common browser-supported formats such as JPG, PNG, WebP and GIF. The pixelated result downloads as a PNG.
How is pixelating different from making pixel art?
Pixelation turns areas of the original into larger color blocks. A pixel-art converter can also simplify the palette and add dithering for a deliberate retro game style.
Can I use this tool to hide private details?
Large pixels can obscure a detail visually, but they are not a guarantee of permanent redaction. Fully remove or cover highly sensitive information before sharing.
Try other image tools
Keep creating with these free, private browser tools.