8 by 8 pixels, and just what the title says.
Source pixilated
Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
A series of 5 patterns. That’s what the P stands for, if you didn’t guess it.
Source Dima Shiper
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Clover with background for St. Patrick's Day. Add to a card with a doily, ribbon, a leprechaun or other embellishments.
Source BAJ
Prismatic Abstract Geometric Background 3
Source GDJ
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
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
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Source Firkin
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett