Blur Image
Apply configurable Gaussian blur to images directly in your browser
About Blur Image
Blur Image lets you apply configurable gaussian blur to images directly in your browser.
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.
Can I control the blur intensity?
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Yes. The slider ranges from 1px (subtle) to 30px (heavy). The preview updates in real time using CSS so you can judge the effect before downloading. The downloaded file uses Canvas rendering for pixel-accurate results.
Which image formats can I download?
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JPEG and PNG. WebP inputs are downloaded as JPEG. JPEG output uses 92% quality to balance file size and sharpness after blur.
Is my image uploaded anywhere?
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No. Everything runs in your browser using the HTML Canvas API. No image data is ever sent to a server. You can confirm this by opening your browser's network tab — there are zero outgoing requests when you use this tool.