A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
A free background pattern with abstract green tiles.
Source V. Hartikainen
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
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 bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
This one needs to be used in small areas; you can see it repeat.
Source Luca
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
The image depicts a seamless pattern of pine tree leaves.
Source Yamachem
From a drawing in 'From Snowdon to the Sea. Striking stories of North and South Wales', Marie Trevelyan, 1895.
Source Firkin
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
Fix and cc0 to get the tile this is based on.
Source SliverKnight
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin