From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A free pink background pattern.
Source V. Hartikainen
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Tiny circle waves, almost like the ocean.
Source Sagive
Plywood Web Background background image for use in web design.
Source V. Hartikainen
A floral background formed from numerous clones of flower 117.
Source Firkin
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Prismatic Polyskelion Pattern No Background
Source GDJ
Kaleidoscope Prismatic Abstract No Background
Source GDJ
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
A seamlessly tileable pink background texture.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock