Zero CC tileable seed texture, edited by me to be seamless from a Pixabay image. CC0
Source Sojan Janso
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
Geometric triangles seem to be quite hot these days.
Source Pixeden
Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
CC0 and seamless wellington boot pattern.
Source SliverKnight
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
A seamless background tile of aged paper with shabby look.
Source V. Hartikainen
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
Continuing the geometric trend, here is one more.
Source Mike Warner