To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless gray background texture suitable for use on websites. To me, it has the look of stone. Feel free to modify it to meet your needs (by making it a bit lighter or darker, for example).
Source V. Hartikainen
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
This was formed by distorting an image of a background on Pixabay.
Source Firkin
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A seamless pattern formed from a sports car on clker.com. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
An attempt for cleaning up the original image in a few steps.
Source Lazur URH
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
White circles connecting on a light gray background.
Source Mark Collins
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim