Subtle scratches on a light gray background.
Source Andrey Ovcharov
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
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 tile made from ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.
Source V. Hartikainen
Kaleidoscope Prismatic Abstract No Background
Source GDJ
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Prismatic Geometric Pattern Background No Black
Source GDJ
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Prismatic Polyskelion Pattern No Background
Source GDJ
The image a seamless pattern of a wire-mesh fence.I want you to use this pattern as a lower layer.
Source Yamachem
A seamless pattern with a unit cell drawn as a bitmap in Paint.net and vectorized in Vector Magic.
Source Firkin
Black And White Floral Pattern Background Inverse
Source GDJ
Alternative colour scheme for the original floral pattern.
Source Firkin
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers