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Image Resizer Online

Image ToolImage CropperImage ResizerImage RotatorImage Flipper / MirrorImage CompressorJPG ConverterPNG ConverterWEBP ConverterBMP Converter

Online Free Image Resizer quickly helps resize any type of image in seconds. Without worrying about data leakage you can use Atrowel Image resizer. It will not send any data to the server or not store it locally. Browse or drag and drop an image from your device, and enter the expected new width and height.

Social media post image dimensions

The below specs refer to the social media post images. All platforms support different dimension, to optimized view we need to upload image with their given best dimension. Following chart will help you to find out best dimention.

Image TypeLinkedInYouTubeFacebookInstagramTwitter
Profile Picture400x400800X800170x170320x320400x400
Banner Picture800x2002560x1440820x312Width 1080 &
Height Inbetween
566 and 1350
1500x500
Post Picture520x3202560x14401200x630Width 1080 &
Height Inbetween
566 and 1350
1200x675
Post Thumbnail1200x6271280x7201280x7201080x10801200x675
Ads Picture1.91:1468x60
728x90
1080x10801080x10801200x1200

How to Resize the Image using JavaScript?

With the help of HTML Canvas element drawImage() method we can resize images in different shapes. Let’s create a canvas element in the html page.

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

Read the uploaded image and create an img component using the Image() constructor.

var image = new Image();
image.src = URL.createObjectURL(uploadFile);

Draw an image on canvas with expected width and height.

/* Get Canvas */
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext("2d");
ctx.canvas.height = image.height;
ctx.canvas.width  = image.width;

/* Resize image with new width and new height */
ctx.drawImage(this.imageObj, 0, 0, newWidth, newHeight);

Credits


HTML Canvas element - is used to draw graphs on a website.

ReactJs - A JavaScript library for building user interfaces.

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