This was formed by distorting an image of a background on Pixabay.
Source Firkin
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Kaleidoscope Prismatic Abstract No Background
Source GDJ
This seamless background image should look nice on websites. It has a dark blue gray texture with vertical stripes, it tiles seamlessly and, like all of the background images here, it's free. So, if you like it, take it!
Source V. Hartikainen
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
This is the remix of "Background pattern 115" uploaded by "Firkin".Thanks.
Source Yamachem
Here's a repeatable texture that resembles a light green concrete wall or something similar.
Source V. Hartikainen
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
A repeating background of thick textured paper. Actually, it turned out to look like something between a paper and fabric.
Source V. Hartikainen
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin