A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
Remixed from a design seen on Pixabay. The basic tile can be had 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
Inspired by an image that was uploaded to Pixabay by geralt
Source Firkin
A bit of scratched up grayness. Always good.
Source Dmitry
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
Seamless Prismatic Quadrilateral Line Art Pattern No Background
Source GDJ
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
A seamless pattern formed from a tile made from page ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok