Image Blur Tool
虚化模糊马赛克背景虚化
Box-blur smoothing with an adjustable pixel radius and live preview — for background softening, privacy masking and dreamy effects, fully local.
How to Use
- Paste any valid JSON, supports nesting, arrays and escapes
- Click Beautify to auto indent and format
- Click Minify to remove whitespace into one line
- All operations run locally for privacy
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FAQ
How to choose blur radius?
Subtle mood 2-4 px, portrait backgrounds 6-10 px, full information masking 15+ px; larger radii take longer to compute.
Why is processing slow on big images?
Blur cost scales with pixel count; multi-megapixel images take seconds — resize down first, blur, then export.
Is my image uploaded?
No, everything runs locally in your browser.