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

The CanvasRenderingContext2D.direction property of the Canvas 2D API specifies the current text direction used to draw text.


ctx.direction = "ltr" || "rtl" || "inherit";


Possible values:

The text direction is left-to-right.
The text direction is right-to-left.
The text direction is inherited from the <canvas> element or the Document as appropriate. Default value.

The default value is "inherit".


Changing text direction

This example draws two pieces of text. The first one is left-to-right, and the second is right-to-left. Note that "Hi!" in ltr becomes "!Hi" in rtl.


<canvas id="canvas"></canvas>


var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');

ctx.font = '48px serif';
ctx.fillText('Hi!', 150, 50);
ctx.direction = 'rtl';
ctx.fillText('Hi!', 150, 130);



Specification Status Comment
HTML Living Standard
The definition of 'CanvasRenderingContext2D.direction' in that specification.
Living Standard  

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Chrome Full support Yes
Full support Yes
Disabled This feature is behind the Experimental Web Platform Features preference. To change preferences in Chrome, visit chrome://flags.
Edge ? Firefox No support NoIE No support NoOpera No support NoSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android No support NoOpera Android No support NoSafari iOS Full support YesSamsung Internet Android Full support Yes


Full support  
Full 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.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also