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The CanvasRenderingContext2D.rect() method of the Canvas 2D API adds a rectangle to the current path.

Like other methods that modify the current path, this method does not directly render anything.  To draw the rectangle onto a canvas, you can use the fill() or stroke() methods.

Note: To both create and render a rectangle in one step, use the fillRect() or strokeRect() methods.


void ctx.rect(x, y, width, height);

The rect() method creates a rectangular path whose starting point is at (x, y) and whose size is specified by width and height.


The x-axis coordinate of the rectangle's starting point.
The y-axis coordinate of the rectangle's starting point.
The rectangle's width. Positive values are to the right, and negative to the left.
The rectangle's height. Positive values are down, and negative are up.


Drawing a rectangle

This example creates a rectangular path using the rect() method. The path is then rendered using the fill() method.


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


The rectangle's corner is located at (10, 20). It has a width of 150 and a height of 100.

const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
ctx.rect(10, 20, 150, 100);



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

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
rectChrome Full support YesEdge Full support 12Firefox Full support 1.5IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes


Full support  
Full support

See also

Documentlabels en -medewerkers

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