Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Smartmockups - Create stunning product mockups, easily and online.
GIMP - GIMP is a multiplatform photo manipulation tool.
MockMagic - A free, easy-to-use device mockup generator
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.