Natron - Natron is a piece of software designed for compositing purposes, and it is entirely free and open source. The software is node-based, which makes it easy to use and customize. Read more about Natron.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Blackmagic Design Fusion - Fusion is the world’s most advanced compositing software for visual effects artists, broadcast and motion graphic designers, and 3D animators.
Sketch - Professional digital design for Mac.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.