Material Maker - Cross-platform, procedural texture generation tool.
Substance Designer - Substance Designer is a node-based non-destructive application for material authoring.
PixaFlux - PixaFlux is a node based image processing application.
TextureWorks - AI-based, seamless texture generation and re-scaling tool for the desktop.
PixPlant - A complete solution for repeating textures and 3D maps. Save a lot of texturing time with PixPlant!
Substance Alchemist - The material enthusiast's toolbox