Photo Blur Brush

A focused image editing tool for applying blur selectively with brush controls, suitable for photographers and designers seeking fast, non-destructive blur effects.

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About This Tool

The Photo Blur Brush tool enables selective blur by letting you paint over image regions to blur while leaving other areas sharp. It helps photographers, retouchers, and designers create depth, reduce distractions, or simulate a shallow depth of field without additional photo shoots.
Conceptually, the tool creates a blurred version of the image and composites it with the original based on the user-defined mask. A separable Gaussian blur is used for performance, with brush size, strength, and feather controlling how much blur and how smoothly it transitions across edges.
Who benefits: professionals and hobbyists who require precise local edits and fast iteration. Unique value: non-destructive, mask-driven blur that can be revised or removed later, with batch presets and export-ready results.
Core features and use cases: image upload, brush controls, mask painting, adjustable blur radius and strength, feathered edges, and straightforward export. Typical uses include portrait background smoothing, product shot cleanup, and social media-ready edits.

How to Use

  1. Upload the source image to the tool.
  2. Set brush size, blur radius, strength, and feather to match the target region.
  3. Paint over regions to define the blur mask; use erase to refine edges.
  4. Preview the result and adjust parameters or mask as needed.
  5. Apply the changes and export the edited image.
How to use photo editor blur brush

Frequently Asked Questions

Find Quick Answers

What inputs are required?
You must provide an input image and optional blur mask. Specify brush size, blur radius, strength, and feather, plus an output format and quality setting if desired. The tool validates types and ranges and will report errors if required fields are missing.
Is the tool non-destructive?
Yes. The tool generates a composited result rather than permanently altering the source pixels. The blurred regions are stored as an overlay and can be revised by adjusting the mask or parameters.
What output formats are supported?
Outputs include PNG and JPEG with user-selectable quality. The tool preserves image dimensions and color space where possible, and can embed basic metadata if requested.
How do I ensure smooth edges?
Increase feather to soften transitions and refine the mask edges with smaller brush sizes for detail. Frequent previews help you confirm that blurred areas blend naturally with sharp regions.

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