Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
Square design drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
A new one called white wall, not by me this time.
Source Yuji Honzawa
The image depicts a seamless pattern which was made using stripe-like things including borders.I used OCAL cliparts called "Blue Greek Key With Lines Border" uploaded by "GR8DAN" and "daisy border" uploaded by "johnny_automatic".Thanks.
Source Yamachem
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
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
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
Prismatic Chevrons Pattern 5 With Background
Source GDJ
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Prismatic Polka Dots Mark II 3 No Background
Source GDJ