A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A white version of the very popular linen pattern.
Source Ant Ekşiler
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
Seamless Green Tile Background
Source V. Hartikainen
Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
A new take on the black linen pattern. Softer this time.
Source Atle Mo
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Zero CC bark from fur tree tileable texture, photographed and made by me. CC0
Source Sojan Janso
A version without colours blended together to give a different look.
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
Black brick wall pattern. Brick your site up!
Source Alex Parker
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
This white background pattern has a seamless grunge style texture. Here's a white grunge style background pattern. Use it as a tiled background image on web sites or for other purposes.
Source V. Hartikainen
Prismatic Abstract Geometric Background 3
Source GDJ
A seamless stone-like background for blogs or any other type of websites.
Source V. Hartikainen