Image Blur & Mosaic
Apply mosaic, blur, or black-out effects to hide sensitive areas. Brush and rectangle selection tools.
Drop image files here
or
Supported formats: JPEG, PNG, WebP, GIF, BMP, HEIC — multiple files supported
What Is Image Mosaic & Blur?
Image mosaic and blur is an online tool that applies mosaic or blur effects to selected areas of photos and images. It's useful for hiding faces and personal information before posting on social media, or masking private data in blog screenshots.
sakutto.ai's image blur tool processes everything in your browser — your images are never uploaded to any server. A privacy-focused tool that protects privacy, not compromises it.
Intuitively adjust blur intensity and area, with support for multiple regions. Great for hiding nameplates in real estate photos, background processing for e-commerce, and masking personal info in report attachments. Free, no sign-up required.
Features of the Image Mosaic & Blur Tool
Three blur effects
Choose from mosaic (pixelation), Gaussian blur, or solid black fill. Perfect for hiding faces and personal information.
Rectangle select & brush
Use "rectangle select" for defined areas, or "brush" mode for freehand precision. Great for blurring fine details.
Undo / Redo support
Made a mistake? Undo with one click. Redo and refine until you get the perfect result.
Multiple regions at once
Apply multiple blur regions to a single image. Cover faces, license plates, and more in one go.
Batch processing
Upload multiple images, apply blur to each, and process them all at once. Bulk ZIP download is also supported.
Privacy-first
All processing happens in your browser — images are never sent to any server. No signup required, completely free.
How to Use
Upload your image
Drag and drop or use the file picker to add images. Supports JPEG, PNG, WebP, HEIC, and more.
Choose an effect and drawing mode
Select mosaic, Gaussian blur, or black fill, then use rectangle select or brush to mark the areas you want to blur.
Click "Apply Blur"
The blur is applied. Once done, download files individually or as a ZIP archive.
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