Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The AudioWorklet interface of the Web Audio API is used to supply custom audio processing scripts that execute in a separate thread to provide very low latency audio processing. The worklet's code is run in the AudioWorkletGlobalScope global execution context, using a separate Web Audio thread which is shared by the worklet and other audio nodes.

Access the audio context's instance of AudioWorklet through the BaseAudioContext.audioWorklet property.


The AudioWorklet interface does not define any properties of its own, but does inherit properties of Worklet.


This interface inherits methods from Worklet. The AudioWorklet interface does not define any methods of its own.


AudioWorklet has no events to which it responds.


See AudioWorkletNode for complete examples of custom audio node creation.


Specification Status Comment
Web Audio API
The definition of 'AudioWorklet' in that specification.
Working Draft Initial definition.

Browser compatibility

ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
AudioWorkletChrome Full support 66Edge Full support 79Firefox Full support 76IE No support NoOpera Full support YesSafari No support NoWebView Android Full support 66Chrome Android Full support 66Firefox Android No support NoOpera Android Full support YesSafari iOS No support NoSamsung Internet Android Full support 9.0


Full support
Full support
No support
No support

See also