The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Black paper texture, based on two different images.
Source Atle Mo
Based from Design Kindle
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
This is the remix of an OCAL clipart called "Rain on Window" uploaded by "pagarmidna".Thanks.This is a seamless pattern of raindrops.
Source Yamachem
Alternative colour scheme for the original floral pattern.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Here's a new paper-like background for free use on personal and commercial projects (this applies to all background patterns here).
Source V. Hartikainen
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
ZeroCC tileabel stone granite texture, edited from pixabay. CC0
Source Sojan Janso
Prismatic Geometric Pattern Background No Black
Source GDJ
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
Old China with a modern twist, take two.
Source Adam Charlts
An attempt for cleaning up the original image in a few steps.
Source Lazur URH
Prismatic Geometric Tessellation Pattern 3 No Background
Source GDJ
Zero CC bark from fur tree tileable texture, photographed and made by me. CC0
Source Sojan Janso
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin