A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
Remixed from a drawing in 'Line and form", Walter Crane, 1914.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
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
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Here is a new seamless wood texture for using as blog or website backgrounds.
Source V. Hartikainen
An abstract texture of black metal pipes (seamless).
Source V. Hartikainen
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Prismatic Groovy Concentric Background
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.