Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
ExifToolGUI - Graphical user interface to https://alternativeto.
Caesium Image Compressor - Compress your pictures up to 90% without visible quality loss.
PhotoME - PhotoME is a powerful tool to show and edit the meta data of image files.
JPEGmini - JPEGmini - The Photo Optimization Tool Trusted by Tens of Thousands Image Perfectionists
Exif Pilot - Exif Pilot is a Free EXIF Editor that allows you to manipulate META data within image files.