Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
A pattern drawn in Paint.net and vectorized in Inkscape.
Source Firkin
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
A lot of people like the icon patterns, so here’s one for your restaurant blog.
Source Andrijana Jarnjak
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
Traced from a drawing in 'Household Stories from the Collection of the Brothers Grimm', Wilhelm Carl Grimm , 1882.
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
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamlessly tile-able grunge background image.
Source V. Hartikainen
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Prismatic Geometric Pattern Background
Source GDJ
Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
A comeback for you: the popular Escheresque, now in black.
Source Patten
Continuing the geometric trend, here is one more.
Source Mike Warner