Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
Neat little photography icon pattern.
Source Hossam Elbialy
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
An alternative colour scheme for the original seamless texture formed from an image on Pixabay.
Source Firkin
The Grid. A digital frontier. I tried to picture clusters of information as they traveled through the computer.
Source Haris Šumić
Abstract Ellipses Background Grayscale
Source GDJ
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Remixed from a drawing that was uploaded to Pixabay by captenpub.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio