JPG to PNG is described as 'simple free online tool the lets you convert from JPG files to PNG files with a focus on privacy. It does all of the converting of your image files directly in your own browser so that your images are not sent across the internet' and is an website in the Photos & Graphics category. There are six alternatives to JPG to PNG, not only websites but also apps for Windows, Windows S, Windows Phone and SaaS. The best alternative is Free Image Convert and Resize, which is free. Other great sites and apps similar to JPG to PNG are Image Conversion Tool (Paid), Png-Jpg.com (Free, Open Source), Batch Image Converter (Paid) and Pixle (Free).
Batch PNG to JPG is a handy png to jpg converter. For you who need to do a batch image conversion from png picture to jpg image. It will flatten multilayer png and for multi frame png it will convert the first frame only.