
Onshape
Blender
Sculptris
FreeCAD
meshmixer
SketchUp
ShapeShop
Sketchfab
Patternizer
Patterninja
SVG Stripe Generator
SVGeez
PatternPad
Pattern Monster
Plain pattern
Doodad.dev's Pattern Generator
Onshape
PatternizerBlender - Blender is the open source, cross platform suite of tools for 3D creation.
Patterninja - Create patterns online
Sculptris - Sculptris: Enter a world of digital art without barriers.
SVG Stripe Generator - SVG Stripe Generator is an easy-to-use tool that enables you to create unlimited stripes and then download them to the device.
FreeCAD - An open-source parametric 3D modeler
SVGeez - SVGeez is a platform that offers many CSS SVG backgrounds and lets you customize and download them for free.