Easy to use because it is portable website no software required on internet and this resizing.app or you can use its chrome extension..

The main motive behind using this web application is that: 1. It fast implementation. 2. Converts photos to other formats without any compromise in quality 3. Excellent image compression.(I have been using this to compress my high quality pics to share through whatsapp) 4. It is free of cost (I mean who provides all these now a days for free). 5. I have been using this for couple of months to upload images on social media and also mail.

The best part about the application is the interface, we can just drag and drop the image for conversion. Also the advantage of security as the app doesn't uploads the pictures on the server. moreover, we can add the extension to our browser.