A seamless pattern formed from a square tile based on a jpg on Pixabay. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
A seamless background tile of aged paper with shabby look.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A classic dark tile for a bit of vintage darkness.
Source Listvetra
This was formed by distorting an image of a background on Pixabay.
Source Firkin
The image depicts a seamless pattern of a snow crystal.I referred to a book called ”sekka-zusetsu” or "雪華図説" which means an illustrated explanation about snow crystals.This book was published in 1832 (天保3年) or Edo period.For more about "雪華図説",see here:dl.ndl.go.jp/info:ndljp/pid/2536975
Source Yamachem
A free seamless background texture that looks like a brown stone wall.
Source V. Hartikainen
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
An abstract texture of black metal pipes (seamless).
Source V. Hartikainen
A very dark asfalt pattern based off of a photo taken with my iPhone.
Source Atle Mo
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
A seamless light gray paper texture with horizontal double lines.
Source V. Hartikainen
Just like the black maze, only in light gray. Duh.
Source Peax
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
Black And White Floral Pattern Background Inverse
Source GDJ
Here's a dark background pattern that contains a steel grid pattern as a texture. Use it as a website background or for other purposes. It's free!
Source V. Hartikainen
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim