Canva - Canva is a graphic-design platform with a drag-and-drop interface to create print or visual content while providing templates, images, and fonts. Canva makes graphic design more straightforward and accessible regardless of skill level.
QuickChart - QuickChart is easy to use and open-source open API that makes it easy to generate chart images.
PicMonkey - PicMonkey is a feature-rich online photo editor that works right in your browser; no downloads...
Google Charts - Interactive charts for browsers and mobile devices.
Piktochart - Piktochart for Business Storytelling
Image Charts - No more pain rendering charts server-side.