This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The addModule() method of the Worklet interface loads the module in the given JavaScript file and adds it to the current Worklet.


addPromise = worklet.addModule(moduleURL);
addPromise = worklet.addModule(moduleURL, options);


A String containing the URL of a JavaScript file with the module to add.
options Optional
An object with any of the following options:
  • credentials: A RequestCredentials value that indicates whether to send credentials (e.g. cookies and HTTP authentification) when loading the module. Can be one of "omit", "same-origin", or "include". Defaults to "same-origin". See also Request.credentials.

Return value

A Promise that resolves once the module from the given URL has been added. The promise doesn't return any value.


const audioCtx = new AudioContext();
const audioWorklet = audioCtx.audioWorklet;
await audioWorklet.addModule('modules/bypassFilter.js', {
  credentials: 'omit',


Browser compatibilityUpdate compatibility data on GitHub

Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 65 No 63 No 52 No
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 65 65 No 63 52 No Yes

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