Image Converter Plus - Image Converter Plus is a multifunctional conversion and resizing tool for Windows operating system.
ImageMagick - ImageMagick is a software suite to create, edit, and compose bitmap images.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
OpenCV - OpenCV is the world's biggest computer vision library
FileStar - With FileStar you can "do anything with any file".
Cloudinary - Cloudinary is a cloud-based service for hosting videos and images designed specifically with the needs of web and mobile developers in mind.