Turn your site into a dragon with this great scale pattern.
Source Alex Parker
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
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Sometimes you just need the simplest thing.
Source Fabricio
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Fix and cc0 to get the tile this is based on.
Source SliverKnight
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
Feel free to use this seamless background texture as a background on a web site. It's colored in a light pink color and is seamlessly tile-able.
Source V. Hartikainen
Formed by distorting a JPG from PublicDomainPictures
Source Firkin