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.

Headers.me - Create social cover images that get you followers

Sketch - Professional digital design for Mac.

Figen - Free post cover & background generator tool

Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.

Blog Cover - Cover image generator for your blog post