This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
Classic vertical lines, in all its subtlety.
Source Cody L
Prismatic Abstract Geometric Background 2
Source GDJ
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
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
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
Light and tiny, just the way you like it.
Source Rohit Arun Rao
Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ
A seamless background of warped stripes on paper.
Source V. Hartikainen
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Here's a quite bright pink background pattern for use on websites. It doesn't look like a real fur, but it definitely resembles one.
Source V. Hartikainen
Prismatic Hypnotic Pattern No Background
Source GDJ
A background pattern with a look of rough fabric.
Source V. Hartikainen
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
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