Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
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
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
You guessed it – looks a bit like cloth.
Source Peax Webdesign
This seamless pattern consists of a blue grid on a yellow background.
Source V. Hartikainen
From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Textured Red Brown Plastic, Free Background Pattern. Although there's already enough plastic in our lives, let's bring it to the web too.)
Source V. Hartikainen
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
Sharp but soft triangles in light shades of gray.
Source Pixeden
A dark striped seamless pattern suitable for use as a background on websites.
Source V. Hartikainen
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
A seamless pattern based on a tile that can be achieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin