Image Compressor by RedKetchup - Compress the file size of a PNG, JPEG, WEBP, or HEIC image online. Reduce the image dimensions based on KB or MB. Improve the quality of PNG compression with dithering.
Faviconer - Faviconer.com, or favicon generator, is online tool for creating favicon.
TinyJPG - Compress JPEG images with perfect quality and file size
ConvertIcon! - Converticon is a simple icon utility.
TalkJarvis Image Compressor - Online Image Compressor – Compress any type of image online
Ordinatore - Those who want to tidy up their Macs will surely love this application.