Looks like an old wall. I guess that’s it then?
Source Viahorizon
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
Zero CC tileable hard cover red book, scanned and made by me. CC0
Source Sojan Janso
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
Prismatic Snowflakes Pattern No Background
Source GDJ
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
Honestly, who does not like a little pipe and mustache?
Source Luca Errico
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
The original enhanced with one of Inkscapes's filters.
Source Firkin
The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
A free repetitive background with a dark concrete wall like texture. This one may be used in dark web site designs.
Source V. Hartikainen