Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Sometimes you just need the simplest thing.
Source Fabricio
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
A free seamless texture of reptile skin colored in a dark brown color. As always, you may use it as a repeated background image in your web design works, or for any other purposes.
Source V. Hartikainen
The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
Textured Red Brown Plastic, Free Background Pattern. Although there's already enough plastic in our lives, let's bring it to the web too.)
Source V. Hartikainen
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.
Source V. Hartikainen
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Prismatic Abstract Geometric Background 2 No Black
Source GDJ