One more sharp little tile for you. Subtle circles this time.
Source Blunia
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Prismatic Floral Background No Black
Source GDJ
A free light orange brown wallpaper with vertical stripes designed for use as a tiled background on websites. An yet another background pattern with vertical stripes.
Source V. Hartikainen
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers