A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
This white background pattern has a seamless grunge style texture. Here's a white grunge style background pattern. Use it as a tiled background image on web sites or for other purposes.
Source V. Hartikainen
Dark blue concrete wall with some small dust spots.
Source Atle Mo
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Element of beach pattern with background.
Source Rones
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
The image depicts a seamless pattern of pine tree leaves.
Source Yamachem
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
You know I love paper patterns. Here is one from Stephen. Say thank you!
Source Stephen Gilbert
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus