Pixelate any part of your image for free — right in your browser. No upload, no signup. Hide faces, license plates, or sensitive info in seconds.
100% free No signup required Your images stay private Works in your browser
Free Online Pixelate Image Tool
NanoImage is a free pixelate image tool that turns any region into a mosaic — pixelate image online for privacy, redaction, or creative effects. Select areas with the brush, adjust pixel block size, and download in your browser with no server upload and no account required.
How to Pixelate an Image Online
Use this free pixelate image tool to mosaic any area of your photo directly in your browser. Select a region with the brush, adjust the pixel size, and download the result — no upload to any server, no account required. Works with JPG, PNG, WebP, and GIF files up to 20MB.
When to Use Pixelate vs. Blur
Pixelate image free workflows are ideal for hiding text, IDs, license plates, and QR codes where blocky mosaic is unmistakable. Blur Image offers a softer image blur effect for faces and backgrounds. Many users pixelate sensitive regions, then remove EXIF metadata before posting.
This tool adds pixelation — it does not restore detail from an already pixelated export. Keep your original file. If you need to make images less pixelated after export, you must re-edit from the source. For accidental softness, try Enhance Image; for smooth hiding, try Blur Image.
How to Pixelate Part of an Image
Upload your JPG, PNG, WebP, or GIF using the upload zone or drag and drop.
Use the brush to select the area you want to pixelate, then adjust pixel size or presets.
Click Download to save your edited image — processing stays on your device.
This tool adds mosaic pixelation to selected areas — it cannot restore original detail from an already pixelated photo. Always keep your unedited original. To hide details with soft edges instead of blocks, try Blur Image. For brightness and clarity tweaks on photos you own, try Enhance Image.
Can I de-pixelate an image with this tool?
No. NanoImage pixelates regions you paint with the brush; it does not reverse existing pixelation. Use Undo before downloading if you are still editing. For privacy masking, see Blur Image or Remove EXIF.
How do I fix a pixelated image?
If a photo was pixelated on purpose, you generally cannot recover sharp detail from the exported file. Re-open your original if you have one. To avoid accidental whole-image pixelation, use the brush to select only the area you need.
How can I make an image less pixelated?
Exported pixelated areas cannot be smoothed back to full quality. While editing, use Undo or Clear Selection. For future edits, use smaller pixel blocks or try Blur Image for a softer hide effect.
Can I pixelate an image for free?
Yes. NanoImage is 100% free with no signup. Upload JPG, PNG, WebP, or GIF, paint the area, adjust pixel size, and download — all in your browser with no server upload.
What is the difference between pixelate and blur?
Pixelate uses mosaic blocks. Blur softens details. Both can hide sensitive information — pixelate is stronger for IDs and text; blur looks more natural for faces and backgrounds.
Can I adjust pixel size?
Yes. Use the Pixel Size slider or presets (Light, Medium, Strong, Extreme). Larger blocks hide details more strongly.
When should I use pixelate?
Use it for faces, license plates, addresses, account names, QR codes, or document numbers before sharing screenshots or documents online.