OffscreenCanvas: width property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2023.

Note: This feature is available in Web Workers.

The width property returns and sets the width of an OffscreenCanvas object.

Value

A positive integer representing the width of the offscreen canvas in CSS pixels.

Creating a new offscreen canvas and returning or setting the width of the offscreen canvas:

const offscreen = new OffscreenCanvas(256, 256);
offscreen.width; // 256
offscreen.width = 512;

Specification
HTML # dom-offscreencanvas-width-dev

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`width`	Chrome – Full support Chrome 69 (Release date: 2018-09-04) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 105 (Release date: 2022-09-20) footnote Full support	Opera – Full support Opera 56 (Release date: 2018-09-25) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 69 (Release date: 2018-09-04) footnote Full support	Firefox for Android – Full support Firefox for Android 105 (Release date: 2022-09-20) footnote Full support	Opera Android – Full support Opera Android 48 (Release date: 2018-11-08) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 10 (Release date: 2019-08-22) footnote Full support	WebView Android – Full support WebView Android 69 (Release date: 2018-09-04) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support

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