The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Tiny circle waves, almost like the ocean.
Source Sagive
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
A dark background pattern/texture of a dimpled metal plate.
Source V. Hartikainen
A seamless pattern formed from a square tile based on a jpg on Pixabay. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
The Grid. A digital frontier. I tried to picture clusters of information as they traveled through the computer.
Source Haris Šumić
Might not be super subtle, but quite original in its form.
Source Alex Smith
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
This one is amazing, truly original. Go use it!
Source Viahorizon
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless texture of black leather. I think it will look best when used in headers, footers or sidebars.
Source V. Hartikainen
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO