Xnapper - Take beautiful screenshots instantly
Slickr - Powerful cover image generator for your Hashnode blog
Screely - Screely instantly generates dribbble-ready images. Simply upload your screenshot and we'll do the rest.
Headers.me - Create social cover images that get you followers
Snapit.gg - Take a screenshot of anything and it will look amazing in seconds!
Thumbnails Cloud - The simplest API for generating file thumbnails