Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
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
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
A background pattern with blue on white vertical stripes.
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
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
Here I have tried to create something that would look like maple wood. Not sure how well it's turned out, but at least it looks like wood.
Source V. Hartikainen
A web texture of brown canvas. Will look great, when used in dark web designs.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk