A seamless background pattern with impressed gray dots.
Source V. Hartikainen
The image a seamless pattern derived from a weed which I can't identify.The original weed image is from here:https://jp.pinterest.com/pin/500744052301423641/
Source Yamachem
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Zero CC tileable pine bark texture, photographed and made by me. CC0
Source Sojan Janso
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
Source Firkin
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
A pattern derived from repeating unit cells each derived from part of a mosaic in paint.net. The starting point for the mosaic was a picture of some prawns!
Source Firkin
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
If you need a green background for your blog/website, try this one. Remember that Green Striped Background is seamlessly tileable.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
This light background pattern has a texture of "frozen" surface with diagonal stripes. Here's an yet another addition to the collection of free website backgrounds.
Source V. Hartikainen