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Fabric.js Text cornerSize Property

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  • Last Updated : 08 Feb, 2022
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In this article, we are going to see how to change the cornerSize of the text canvas using Fabric.js. The canvas means the text written is movable, rotatable, resizable, and can be stretched. Further, the text itself cannot be edited like a textbox.

To make it possible, we are going to use a JavaScript library called Fabric.js. After importing the library using CDN, we will create a canvas block in the body tag that will contain our text. After this, we will initialize instances of Canvas and Text provided by FabricJS and change the corner size of the canvas text using cornerSize property.


    cornerSize: Number

Parameters: This property accepts one parameter as mentioned above and described below:

  • cornerSize: This parameter takes a number value.

Below is the example that illustrates the use of cornerSize property in Fabric.js:



<!DOCTYPE html>
    <!-- Loading the FabricJS library -->
    <script src=
    <div style="text-align: center;width: 400px;">
        <h1 style="color: green;">
            Fabric.js | Text cornerSize Property
    <div style="text-align: center;">
        <canvas id="canvas" width="400" height="200"
            style="border:1px solid green;">
        // Create a new instance of Canvas
        var canvas = new fabric.Canvas("canvas");
        // Create a new Text instance
        var geek = new fabric.Text('GeeksforGeeks', {
            cornerSize: 30
        // Render the text on Canvas


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