Snappa - The perfect graphic design tool for digital marketers.
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
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.
Smartmockups - Create stunning product mockups, easily and online.
Artboard Studio - Online graphic design app mainly focused on product mockups.
MockMagic - A free, easy-to-use device mockup generator