A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
Derived from a JPG that was uploaded to Pixabay by ractapopulous
Source Firkin
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
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
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
ZeroCC tileabel stone granite texture, edited from pixabay. CC0
Source Sojan Janso
Uses spirals from Pixabay. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
A free light orange brown wallpaper with vertical stripes designed for use as a tiled background on websites. An yet another background pattern with vertical stripes.
Source V. Hartikainen
This is a hot one. Small, sharp and unique.
Source GraphicsWall
Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Here I have tried to create something that would look like maple wood. Not sure how well it's turned out, but at least it looks like wood.
Source V. Hartikainen
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran