
Patternizer
Patterninja
SVG Stripe Generator
SVGeez
PatternPad
Pattern Monster
Plain pattern
Doodad.dev's Pattern Generator
SolidWorks
FreeCAD
SketchUp
LibreCAD
Autodesk AutoCAD
OpenSCAD
BRL-CAD
Onshape
Patterninja - Create patterns online
FreeCAD - An open-source parametric 3D modeler
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.
SketchUp - 3D for Everyone
SVGeez - SVGeez is a platform that offers many CSS SVG backgrounds and lets you customize and download them for free.
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.