Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Zero CC tileable cork floor, photographed and made by me. CC0
Source Sojan Janso
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Groovy Concentric Background
Source GDJ
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
A seamless stone-like background for blogs or any other type of websites.
Source V. Hartikainen
Prismatic Abstract Geometric Background 4
Source GDJ
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
This is a hot one. Small, sharp and unique.
Source GraphicsWall
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
A background pattern with wavy green vertical stripes. This one has green stripes on a white background. Download if you like it.
Source V. Hartikainen
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
The starting point for this was a texture drawn with the 'Radial Colors' plug-in in Paint.net.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin