CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
Retro Circles Background 8 No Black
Source GDJ
"Beige Stone", Tileable Texture.
Source V. Hartikainen
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
Classic vertical lines, in all its subtlety.
Source Cody L
An alternative colour scheme to the original seamless pattern.
Source Firkin
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Green Background Pattern
Source V. Hartikainen
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.
Source Atle Mo
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Another fairly simple design drawn in Paint.net and vectorized in Inkscape.
Source Firkin
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
This is the remix of "blue wave-seigaiha".The image depicts a seamless pattern of the front upper part of Japanese five yen coin which is used currently.This design represents a rice with ripe golden ears.
Source Yamachem
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin