Square design drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
White circles connecting on a light gray background.
Source Mark Collins
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Remixed from a drawing in 'Jezebel's Daughter', Wilkie Collins 1880
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Abstract Tiled Background Extended 12
Source GDJ
A free grid paper background pattern for using on web sites.
Source V. Hartikainen
A pattern drawn in Paint.net and vectorized in Inkscape.
Source Firkin
A free web background image with a seamless concrete-like texture and an Indian-red color.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A floral background formed from numerous clones of flower 117.
Source Firkin
Feel free to use this seamless background texture as a background on a web site. It's colored in a light pink color and is seamlessly tile-able.
Source V. Hartikainen
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Sharp but soft triangles in light shades of gray.
Source Pixeden
A background pattern with a look of rough fabric.
Source V. Hartikainen
This is a hot one. Small, sharp and unique.
Source GraphicsWall