What is Image Blur Tool?

Blur, pixelate, or paint over entire images or specific regions. Use it to redact faces, license plates, or sensitive text before sharing — or to add a soft background to photos.

Four redaction modes are available: Gaussian for natural softening, Box for uniform smoothing, Pixelate for mosaic obfuscation, and Blackout for a solid-colour bar in any colour you choose. The radius slider goes from a subtle 2px haze up to a heavy 100px obliteration. Switch into region mode to draw rectangles or ellipses over specific areas — drag zones to reposition, grab a corner to resize, and use Ctrl+Z to undo your last edit.

How to use

1. Step 1 — Upload an image (PNG, JPEG, or WebP) by dragging it in or clicking the upload area.
2. Step 2 — Choose a blur type (Gaussian, Box, Pixelate, or Blackout), set the radius (or pick a fill colour for Blackout), and switch to Select Areas if you only want to redact part of the image.
3. Step 3 — Preview the result in real time, then download the blurred image as PNG or JPEG, or copy it straight to your clipboard.

When to use

• Redacting email addresses, names, or chat handles before posting a screenshot.
• Pixelating faces or license plates in photos for privacy.
• Softening the background of a portrait to fake a shallow depth of field.

Result

A user needs to share a screenshot but it contains a visible email address. They select just the email region, apply a 15px Gaussian blur, and download the redacted image.

FAQ

Is a blurred image actually safe to share, or can someone reverse it?

Pixelation at a small block size can sometimes be reversed by motion or AI deblurring. For real redaction of sensitive text, use Pixelate with a radius of 25px or higher, or paint a solid rectangle over the area instead.

What's the difference between Gaussian and Box blur in practice?

Gaussian weighs nearby pixels more than distant ones, giving a smooth lens-like fade. Box blur averages all pixels in the radius equally, which is faster but produces slightly harder transitions. For photos use Gaussian; for quick previews use Box.

Can I blur more than one area in the same image?

Yes. Switch to region mode and draw as many rectangles or ellipses as you need. Each zone is processed with the current settings, so they all share the same intensity. Drag a zone to move it, grab a corner to resize, click x to remove just one, or press Ctrl+Z to undo your last change.

Why does the exported image look slightly different from the live preview?

The preview renders at the displayed size while the download renders at the original image resolution. A 20px radius on a 4000px-wide photo will look subtler than the same 20px on the scaled-down preview. Try a larger radius if the export looks too sharp.

Does the tool keep my original image quality?

Output is saved at full resolution. PNG is lossless and keeps unblurred pixels pixel-perfect; JPEG is much smaller for photos, with an adjustable quality slider. Either way the file is rebuilt from raw pixels, so EXIF, GPS, and other metadata from the original is removed automatically.

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