To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
The image is the remix of "wire-mesh fence seamless pattern" .This is a more minute version of it.Sorry for the file size.Using path>difference in Inkscape, I will cut out any silhouette from this pattern and create a "meshed silhouette".
Source Yamachem
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Zero CC tileable yellow craft paper; scanned and made by me. CC0
Source Sojan Janso
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle
The perfect pattern for all your blogs about type, or type-related matters.
Source Atle Mo
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-brown.
Source Yamachem
Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin