To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
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
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
Abstract Ellipses Background Grayscale
Source GDJ
A cute x, if you need that sort of thing.
Source Juan Scrocchi
Abstract Tiled Background Extended 11
Source GDJ
Prismatic Triangular Background Design Mark II 5
Source GDJ
A bit strange this one, but nice at the same time.
Source Diogo Silva
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
This background pattern contains a texture of yellow wood planks. I think it looks quite original.
Source V. Hartikainen
From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin
Alternative colour scheme to the original.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
As the original image 's page size is too large for its image size, I remixed it.
Source Yamachem
Everyone needs some stardust. Sprinkle it on your next project.
Source Atle Mo
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
A colourful background drawn originally in paint.net and vectorised in Vector Magic.
Source Firkin