Image Tuner is described as 'free software for batch resizing, converting, watermarking and renaming your digital photos and images from more than 20 image formats to JPEG, BMP, PNG, TIFF and GIF formats' and is an app in the Photos & Graphics category. There are more than 50 alternatives to Image Tuner for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and Android. The best alternative is ImageMagick, which is both free and Open Source. Other great apps like Image Tuner are RIOT - Radical Image Optimization Tool (Free), XnConvert (Free Personal), FastStone Photo Resizer (Free Personal) and PNGGauntlet (Free).
Free utility to compress JPG images online. The tool produces small and optimized JPGs which improve the page speed of your website. These increase in page loading time will improve the ranking of your website in search engines.