This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The image depicts a seamless pattern which includes hexagonally-aligned gourds with BG in light-brown.
Source Yamachem
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
The following orange background pattern resembles a honeycomb.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Original minus the background
Source Firkin
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin