ImageOptim - Faster web pages and apps.
ON1 Resize - High quality photo enlargement up to 1000%.
FILEminimizer Pictures - FILEminimizer Pictures compresses JPEG photos, TIFF, BMP and PNG images and pictures by up to 98%.
AI Img Enlarger - Enlarge Images Without Losing Quality Online
Shrink O'Matic - Shrink O'Matic is an AIR application to easily (batch) resize (shrink) images.
SmillaEnlarger - SmillaEnlarger is an open-source and portable application designed to help you intensively massage...