Blur Image
Apply configurable Gaussian blur to images directly in your browser
About Blur Image
Applies a Gaussian blur with a strength of 1 to 30 px (default 5) to a JPEG, PNG or WebP image and downloads the result with the value in the file name, as in photo-blur-5px.jpg. The whole image is blurred rather than a selected area, and because the copy is re-encoded from a canvas it carries no EXIF metadata. Useful for soft backgrounds, placeholder images and banners.
Category: Media.
Frequently asked questions
What blur algorithm is used?
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The tool uses the browser's native Canvas 2D filter with a Gaussian blur kernel — the same algorithm used in CSS filter: blur(). The result is a smooth, perceptually natural blur.
Why does the downloaded image look different from the preview?
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The preview blurs the image at its on-screen size, while the download applies the same value to the full-resolution pixels, so large photos come out much less blurred than they look here. Canvas filters are also disabled by default in Safari and in the WebKit-based browsers on iPhone and iPad, where the downloaded file isn't blurred at all.
Which image formats can I download?
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JPEG and PNG. PNG files are saved as PNG, while JPEG and WebP files are saved as JPEG at 92% quality to balance file size and sharpness, so transparent areas in a WebP become black.
Is my image uploaded anywhere?
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No. The picture is read from your device into a hidden canvas, blurred and saved straight to your downloads without being sent to any server. Your browser's network tab will show no request containing the image.