OffscreenCanvas()

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

The OffscreenCanvas() constructor returns a newly instantiated OffscreenCanvas object.

Syntax

new OffscreenCanvas(width, height);

Parameters

width
The width of the offscreen canvas.
height
The height of the offscreen canvas.

Examples

This example creates a new offscreen canvas using the OffscreenCanvas() constructor. We then initialize a WebGL context on it using the getContext() method.

let offscreen = new OffscreenCanvas(256, 256);
let gl = offscreen.getContext('webgl');

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'OffscreenCanvas()' in that specification.
Living Standard  

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
OffscreenCanvas() constructor
Experimental
Chrome Full support 69Edge ? Firefox Partial support 46
Notes Disabled
Partial support 46
Notes Disabled
Notes See bug 1390089.
Disabled From version 46: this feature is behind the gfx.offscreencanvas.enabled preference. To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support 56Safari No support NoWebView Android No support NoChrome Android Full support 69Firefox Android Partial support 46
Notes Disabled
Partial support 46
Notes Disabled
Notes See bug 1390089.
Disabled From version 46: this feature is behind the gfx.offscreencanvas.enabled preference. To change preferences in Firefox, visit about:config.
Opera Android Full support YesSafari iOS No support NoSamsung Internet Android No support No

Legend

Full support  
Full support
Partial support  
Partial support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also