Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin
The image depicts polka dot seamless pattern.
Source Yamachem
A version without colours blended together to give a different look.
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Colour version of the original seamless pattern.
Source Firkin
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso