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.
Un-Pixelate, De-Pixelate & Fixing Pixelated Photos
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.
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