To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
Prismatic Floral Background No Black
Source GDJ
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Prismatic Polka Dots Mark II No Background
Source GDJ
Colorful Floral Background 3 No Black
Source GDJ
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin