A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Background pattern originally a PNG drawn in Paint.net
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Sort of reminds me of those old house wallpapers.
Source Tish
A seamless pattern created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background 2
Source GDJ
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
This texture looks like old leather. It should look great as a background on web pages.
Source V. Hartikainen
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
This background texture resembles stone. It may be used as a background on web pages or on some of their html elements (header, borders, menu bar, etc.). Just modify it for your needs.
Source V. Hartikainen
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer