Lovely pattern with some good-looking non-random noise lines.
Source Zucx
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
You know you love wood patterns, so here’s one more.
Source Richard Tabor
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
8 by 8 pixels, and just what the title says.
Source pixilated
Number five from the same submitter, makes my job easy.
Source Dima Shiper
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
Remixed from a drawing in 'Jezebel's Daughter', Wilkie Collins 1880
Source Firkin
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Green Web Background, Seamless tile.
Source V. Hartikainen
Inspired by a design found in 'Konstantinápolyi emlékeim', Miklos Chriszto, 1893.
Source Firkin
Element of beach pattern with background.
Source Rones
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Formed by distorting an image on Pixabay that was uploaded by gustavorezende. To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Plywood Web Background background image for use in web design.
Source V. Hartikainen
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
Prismatic Abstract Geometric Background 5
Source GDJ
Seamless Green Tile Background
Source V. Hartikainen
The texture of this background image has some similarities with leather, and it's colored in a dark brown color. So, if you are looking for a dark brown background image for your website, this may be an option for you.
Source V. Hartikainen
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian