imgix - Real-time Image Processing. Resize, crop, and process images on the fly, simply by changing their URLs.
Material Palette - Generate and export your Material Design color palette
Cloudimage - Cloudimage.io is the easiest way to resize, store, and deliver your images to your customers through a rocket fast CDN.
Color Hunt - Curated collection of beautiful colors, updated daily
Sirv - Dynamic image processing, hosting and rich-media for retailers and eCommerce.
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!