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
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
Seamless Olive Green Web Background Image
Source V. Hartikainen
Prismatic Polyskelion Pattern No Background
Source GDJ
To celebrate the new feature, we need some sparkling diamonds.
Source Atle Mo
This is a more minute version of "fishnet 01".The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
Prismatic Hexagonalism Pattern No Background
Source GDJ
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
From a drawing in 'Jardyne's Wife', Charles Wills, 1891.
Source Firkin
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso
The tile for this is based on a repeating unit close to a design on Pixabay. It can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
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
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
Remixed from a JPG that was uploaded to Pixabay by susanlu4esm
Source Firkin
A free background tile with a pattern of pink bump dots. This background tile is sweet! Moreover, it's designed for use as website backgrounds.
Source V. Hartikainen
Prismatic Groovy Concentric Background 3
Source GDJ
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
A version without colours blended together to give a different look.
Source Firkin