Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.
Source Atle Mo
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.
Source V. Hartikainen
Prismatic Abstract Geometric Background 4
Source GDJ
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
Pattern Background, Texture, Photoshop Structure style CC0 texture.
Source Darkmoon1968
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Just a nice looking textured pattern with faded blue stripes. Well, that's it for today... one background a day, as usual.
Source V. Hartikainen
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
More in the paper realm, this time with fibers.
Source Jorge Fuentes
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Oh yes, it happened! A pattern in full color.
Source Atle Mo