Blur Image Online
An image blurring utility is a visual effect filter that applies a Gaussian-like smoothing filter to a raster image. Operating client-side, it leverages canvas filter APIs or pixel kernel convolution matrices to blur detail layers, locking the blurred pixels into a new downloadable image.
Apply a smooth blur effect to your photos with an adjustable intensity slider. Private browser-based processing.
Quick Answer
Add a blur filter to your photos. Use the slider to set custom blur intensities, preview the results, and download.
Drag and drop your files here, or browse
Supports PNG,JPEG,WEBP files up to 15MB
Examples
Soft focus effect
Background image → Soft-focused background (3px to 5px blur)
Heavy privacy blur
Sensitive screenshot → Fully obscured information (20px to 30px blur)
How it works
This tool applies a Gaussian-like smoothing filter to your graphics using standard HTML5 Canvas 2D filters.
Once you upload a photo, it is drawn onto an in-memory canvas. Before painting the pixels, the canvas context filter property is configured:
ctx.filter = 'blur(' + blurPx + 'px)'
The browser's native engine handles the pixel convolving math, creating a smooth blur effect. The output canvas is then exported directly to an image blob for downloading locally.
Completely Local. Your photos are rendered in-browser. No uploads or telemetry tracking.
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