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<feGaussianBlur>

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨October 2018⁩.

* Some parts of this feature may have varying levels of support.

The <feGaussianBlur> SVG filter primitive blurs the input image by the amount specified in stdDeviation, which defines the bell-curve.

Like other filter primitives, it handles color components in the linearRGB color space by default. You can use color-interpolation-filters to use sRGB instead.

Usage context

Categories Filter primitive element
Permitted content Any number of the following elements, in any order:
<animate>, <discard>, <set>

Attributes

DOM Interface

This element implements the SVGFEGaussianBlurElement interface.

Example

>

Basic example

SVG

<svg
  width="230"
  height="120"
  xmlns="http://www.w3.org/2000/svg"
  xmlns:xlink="http://www.w3.org/1999/xlink">
  <filter id="blurMe">
    <feGaussianBlur in="SourceGraphic" stdDeviation="5" />
  </filter>

  <circle cx="60" cy="60" r="50" fill="green" />

  <circle cx="170" cy="60" r="50" fill="green" filter="url(#blurMe)" />
</svg>

Result

Drop shadow example

SVG

<svg
  width="120"
  height="120"
  xmlns="http://www.w3.org/2000/svg"
  xmlns:xlink="http://www.w3.org/1999/xlink">
  <filter id="dropShadow">
    <feGaussianBlur in="SourceAlpha" stdDeviation="3" />
    <feOffset dx="2" dy="4" />
    <feMerge>
      <feMergeNode />
      <feMergeNode in="SourceGraphic" />
    </feMerge>
  </filter>

  <circle cx="60" cy="60" r="50" fill="green" filter="url(#dropShadow)" />
</svg>

Result

Specifications

Specification
Filter Effects Module Level 1>
# feGaussianBlurElement>

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android WebView on iOS
feGaussianBlur 5 ≤18 3 9 6 18 4 14 6 1.0 4.4 6
edgeMode No No No No 8 No No No 8 No No 8
in 5 ≤18 3 9 6 18 4 14 6 1.0 4.4 6
stdDeviation 5 ≤18 3 9 6 18 4 14 6 1.0 4.4 6

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/SVG/Reference/Element/feGaussianBlur