Apply Gaussian blur to the whole image or draw regions to blur specific faces, plates and text. No uploads. Nothing leaves your device.
2 modes
Whole image or region blur
30px max
Gaussian blur radius
Multi-region
Draw as many areas as needed
No uploads
100% browser-based
Drop your image here
JPG, PNG, WebP, GIF, BMP or AVIF
Your file never leaves this device
Built for real privacy needs, not just visual effects.
Draw blur regions
Drag to draw rectangles over any part of the image. Each rectangle blurs only that area. Add as many regions as you need before downloading.
Gaussian blur algorithm
The same algorithm used in Photoshop, Lightroom and GIMP. Smooth, natural-looking blur that scales correctly at any output resolution.
Edge bleed fix
Standard canvas blur fades to transparent at image edges. This tool draws the image oversized, blurs, then crops back to eliminate the transparent fringe.
Live CSS preview
Whole image mode shows the blur effect instantly using GPU-accelerated CSS filters. Region mode shows your drawn areas on the live image.
EXIF metadata stripped
The canvas re-encode that applies the blur also strips all EXIF data including GPS coordinates, camera make and timestamps from the output file.
JPG, PNG or WebP output
Download in your preferred format. JPG for smallest file size, PNG for lossless quality, WebP for the best balance of size and quality.
Blurring is one of the most practical privacy tools available when sharing images online. A photo of a team outing has a colleague who did not consent to being photographed. A screenshot of a support conversation contains a customer email address. A property listing photo shows a house number. In each case, sharing the image without modification creates a real privacy risk that a few seconds of region blurring eliminates.
The difference between blurring and deletion is that blurring keeps the visual context intact. A face-blurred photo of a crowd still communicates the scale and energy of the event. A screenshot with a blurred email address still shows the shape and content of the conversation. This matters both for editorial integrity and for the practical reason that viewers find blanked-out rectangles more jarring and suspicious than blurred ones.
Faces blurred at less than 10px radius on a high-resolution image can sometimes be reconstructed using enhancement algorithms. For strong face privacy, use at least 15px and ideally 20px or more. License plates and text are more sensitive to resolution: on a tightly cropped image a 5px blur may be insufficient, while the same radius on a full-width landscape photo where the plate is small may be entirely effective. When in doubt, use Heavy or Maximum.
The region blur in this tool applies the blur at the full natural resolution of your source image, not at the screen preview resolution. This means a 15px blur applied to a 4000-pixel-wide photo is genuinely 15 pixels of blur radius in the actual output file, which is strong privacy protection for most content.
Beyond privacy, whole image blur has legitimate creative uses. Background blur on a product photo draws attention to the subject. A softly blurred image used as a page background reduces visual noise while maintaining atmosphere. Screenshots blurred before final editing serve as composition placeholders. Light blur on a portrait can produce a flattering soft-focus effect when used at low radius values.
The Subtle preset at 3px produces a light softening that reduces digital noise and harsh edges without making the blur obvious. Medium at 8px is the standard editorial blur used in news photography to obscure incidental faces. Heavy at 15px is strong enough to prevent recognition. Maximum at 24px makes content entirely unrecognisable.
Use Heavy (15px) or Maximum (24px) for face blurring. Subtle and Medium blurs soften the image visually but leave enough detail that faces may still be recognisable, especially at larger resolutions. For strong privacy protection of faces, license plates, addresses or other identifying information, use at least 15px radius. Maximum (24px) ensures content is unrecognisable at any zoom level.
Whole image blur applies the Gaussian blur filter to every pixel in the image uniformly. This is useful for creating background blur effects, artistic softening, or making text unreadable across an entire screenshot. Region blur lets you draw rectangles over specific parts of the image and blurs only those areas, leaving everything else sharp. Region mode is the right choice when you need to hide a face, a license plate, a name, an address or any other specific detail while keeping the rest of the image clear.
Yes. In region blur mode you can draw as many rectangles as you need. Each rectangle is added to a list that you can see and manage. Click a region on the image to select it, then click the x button to remove it. All regions are applied in a single export pass so the download contains all your blur areas in one file.
Gaussian blur is the standard blur algorithm used in photo editing software including Photoshop, Lightroom and GIMP. It works by averaging each pixel with its neighbours using a weighted distribution that follows a Gaussian curve. Pixels closer to the center contribute more than pixels at the edges of the sample radius. The result is a smooth, natural-looking blur rather than a blocky or sharp-edged softening. The radius setting controls how many pixels each point is averaged across.
In whole image mode the preview uses a CSS filter on the image element which is a screen-space approximation. The download uses the Canvas API with the same blur radius applied directly to the full-resolution pixel data. The result looks the same but the download is pixel-accurate at the full resolution of your source image. For very high resolution images the downloaded blur will appear slightly less pronounced than the preview because the same pixel radius covers proportionally less of the image.
No. Everything runs in your browser using the Canvas API. Your image never leaves your device. EXIF metadata including GPS location, camera make and timestamps is automatically stripped from the output file during the canvas re-encode, which is an additional privacy benefit beyond the blur itself.
JPG produces the smallest file and is the best choice for photos. PNG is lossless and works well for screenshots, graphics and images with text. WebP is smaller than both at equivalent quality and is supported by all modern browsers. If you are sharing the blurred image on social media or by email, JPG or WebP is usually the best choice.
