A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
Looks like an old wall. I guess that’s it then?
Source Viahorizon
On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.
Source Paul Phönixweiß
A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
This is the remix of an Openclipart clipart called "Maze" uploaded by "any_ono_mous".Thanks.This is a seamless pattern of a maze.
Source Yamachem
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Tile available in Inkscape using shift-alt-i on the selected 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
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
A pale olive green background with a seamless texture.
Source V. Hartikainen
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A free seamless background with pink spots.
Source V. Hartikainen
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
An alternative colour scheme to the original seamless pattern.
Source Firkin
An alternative colour scheme to the original seamless pattern.
Source Firkin