Imagizer Engine - Real time image transformation service
ImageKit.io - Instant multi-platform image optimization
World Stocks Screener - screen & track world stocks using 30+ indicators for free
Resizing.app - Image resizing has never been so simple with free online resizing.app. Convert, optimize, resize images with ease and for absolutely free.
AI Image Transformer - AI Image Transformer aims to give everyone a simple tool to cartoonize and stylize images using pre-trained AI models, and the result is to be produced in near real-time.
Piio - Generates responsive images so you don't have to optimize