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How to change corner style of a canvas-type text using Fabric.js ?

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  • Last Updated : 07 Sep, 2021

In this article, we are going to see how to change the corner style of a canvas-like text in JavaScript. The canvas means text written is movable and can be stretched according to requirement. Further, the text itself cannot be edited like a textbox. The corners of the text are the points from where text can be resized.
Approach: To make it possible, we are going to use a JavaScript library called FabricJS. After importing the library using CDN, we will create a canvas block in the body tag which will contain our text. After this, we will initialize instances of Canvas and Text provided by FabricJS and use the cornerStyle property to change corner style and render the Canvas on the Text as given in the example below. Note that you have to click on the text to see its corners.


fabric.Text(text, cornerStyle: string); 

Parameters: This function accepts two parameters as mentioned above and described below:  

  • text: It specifies the text to be written.
  • cornerStyle: It specifies the corner style which can be ‘rect’ or ‘circle’ where ‘rect’ is the default style.

Program: This example uses FabricJS to change corner style of canvas-like text. 


<!DOCTYPE html>
        How to change corner style of a
        canvas-type text with JavaScript?
    <!-- Loading the FabricJS library -->
    <script src=
    <canvas id="canvas" width="600" height="200"
            style="border:1px solid #000000;">
        // Create a new instance of Canvas
        var canvas = new fabric.Canvas("canvas");
        // Create a new Textbox instance
        var text = new fabric.Text('GeeksforGeeks', {
            cornerStyle: 'circle'
        // Render the Textbox on Canvas


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