Abstract Ellipses Background Grayscale
Source GDJ
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
A bit strange this one, but nice at the same time.
Source Diogo Silva
On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.
Source Paul Phönixweiß
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
A lot of people like the icon patterns, so here’s one for your restaurant blog.
Source Andrijana Jarnjak
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Traced from a drawing in 'Household Stories from the Collection of the Brothers Grimm', Wilhelm Carl Grimm , 1882.
Source Firkin
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Black And White Floral Pattern Background Inverse
Source GDJ
This is the remix of "Strawberry Pattern Background" uploaded by "GDJ". Thanks. I realigned strawberries so as to get seamless and changed the BG color.
Source Yamachem
A free grid paper background pattern for using on web sites.
Source V. Hartikainen