A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Remixed from a drawing in 'Canadian forest industries July-December', 1915
Source Firkin
Used a cherry by doctormo to make this seamless pattern
Source Firkin
Neat little photography icon pattern.
Source Hossam Elbialy
The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
Heavily remixed from a drawing in 'Barbara Leybourne; a story of eighty years ago', Sarah Hamer, 1889.
Source Firkin
The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/
Source Yamachem
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Kaleidoscope Prismatic Abstract No Background
Source GDJ
A nice looking light gray background pattern with diagonal stripes.
Source V. Hartikainen
This light background pattern has a texture of "frozen" surface with diagonal stripes. Here's an yet another addition to the collection of free website backgrounds.
Source V. Hartikainen
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Green Background Pattern
Source V. Hartikainen