A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Geometric Pattern Background
Source GDJ
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Classic 45-degree pattern, light version.
Source Luke McDonald
A comeback for you: the popular Escheresque, now in black.
Source Patten
A repeating background of beige (or is it more vanilla yellow) textured stripes. One more background with stripes.
Source V. Hartikainen
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
This light blue background pattern is quite pleasing to the eye, it consists of a tiny rough grid pattern, which is seamless by design. That's it, if you like the color, you can use this seamless pattern in a web design without making any further modifications to it.
Source V. Hartikainen
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
The image is the remix of "wire-mesh fence seamless pattern" .This is a more minute version of it.Sorry for the file size.Using path>difference in Inkscape, I will cut out any silhouette from this pattern and create a "meshed silhouette".
Source Yamachem
Dark blue concrete wall with some small dust spots.
Source Atle Mo
Prismatic Abstract Background Design No Black
Source GDJ
Sort of reminds me of those old house wallpapers.
Source Tish
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
Prismatic Curved Diamond Pattern No Background
Source GDJ
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova