This is a hot one. Small, sharp and unique.
Source GraphicsWall
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Sort of reminds me of those old house wallpapers.
Source Tish
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
From a drawing in 'Worsborough; its historical associations and rural attractions', Joseph Wilkinson, 1879.
Source Firkin
A white version of the very popular linen pattern.
Source Ant Ekşiler
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
More in the paper realm, this time with fibers.
Source Jorge Fuentes
Prismatic Chevrons Pattern 5 With Background
Source GDJ
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
Pattern Background, Texture, Photoshop Structure style CC0 texture.
Source Darkmoon1968
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
Source Firkin
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
Zero CC tileable Laminate wood texture, photographed and made by me. CC0
Source Sojan Janso
You know you love wood patterns, so here’s one more.
Source Richard Tabor
Like the name suggests, this background image consists of a pattern of dark bricks. It may be an option for you, if you are looking for something that looks like a brick wall for use as a background on web pages. It's not a masterpiece, but looks pretty nice when is tiled.
Source V. Hartikainen
Sort of like the Photoshop transparent background, but better!
Source Alex Parker