A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Remixed from a drawing in 'Kulturgeschichte der Deutschen im Mittelalter' Franz von Loeher, 1891. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A pattern drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
ZeroCC tileabel stone granite texture, edited from pixabay. CC0
Source Sojan Janso
Background Wall, Art Abstract, Watercolor Vintage style CC0 texture.
Source Ractapopulous
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin