A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
This is the remix of an Openclipart clipart called "Maze" uploaded by "any_ono_mous".Thanks.This is a seamless pattern of a maze.
Source Yamachem
Colorful Floral Background 3 No Black
Source GDJ
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
Dark blue concrete wall with some small dust spots.
Source Atle Mo
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Gold Triangular Seamless Pattern No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
An orange vertically striped background pattern. Feel free to download and use this orange background pattern, for example, on the web). It resembles a wallpaper with vertical stripes or something similar to it.
Source V. Hartikainen
Spice up your next school project with this icon background.
Source Swetha
The image depicts meshed silhouettes of various things.The original image is an OCAL clipart called "Enter FOSSASIA 2016 #IoT T-shirt Design Contest" uploaded by "openclipart".Thanks.
Source Yamachem
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
More in the paper realm, this time with fibers.
Source Jorge Fuentes