Gifmock - Easily create high quality GIFs

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.

GIF Resizer - Create animated GIFs and resize GIFs too big to tweet!

PicMonkey - PicMonkey is a feature-rich online photo editor that works right in your browser; no downloads...

ResizePixel - Free image editor to crop, resize, flip, rotate and convert images online

Piktochart - Piktochart for Business Storytelling