Textile Design Software
PlaidMaker is an app for designing woven patterns, including stripes and plaids.
Artlandia SymmetryWorks is an Adobe Illustrator plug-in that lets you make designs in seconds. Instantly puts your design in repeat. Supports both raster (pixel-based) and vector (easily scalable) art. Allows you interactively edit the motif and see your design updated automatically. One-click creation of all types of designs used in textiles.