The WebGLRenderingContext.getSupportedExtensions() method returns a list of all the supported WebGL extensions.



Return value

An Array of strings with all the supported WebGL extensions.


var canvas = document.getElementById('canvas');
gl = canvas.getContext('webgl');

var extensions = gl.getSupportedExtensions();
// Array [ 'ANGLE_instanced_arrays', 'EXT_blend_minmax', ... ]

See also the WebGLRenderingContext.getExtension() method to get a specific extension object.

WebGL extensions

Extensions for the WebGL API are registered in the WebGL Extension Registry. The current extensions are:


Specification Status Comment
WebGL 1.0
The definition of 'WebGLRenderingContext.getSupportedExtensions' in that specification.
Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
getSupportedExtensionsChrome Full support 9Edge Full support 12Firefox Full support 4IE Full support 11Opera Full support 12Safari Full support 5.1WebView Android Full support YesChrome Android Full support 25Firefox Android Full support YesOpera Android Full support 12Safari iOS Full support 8Samsung Internet Android Full support 1.5


Full support  
Full support

See also