Subtle scratches on a light gray background.
Source Andrey Ovcharov
Remixed from a drawing in 'Prehistoric Man: researches into the origin of civilisation in the old and the new world', Daniel Wilson, 1876.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
A heavy hitter at 400x400px, but lovely still.
Source Breezi
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Remixed from a drawing in 'Kulturgeschichte der Deutschen im Mittelalter' Franz von Loeher, 1891. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. Version with black background.
Source Firkin
A repeating background for websites with a texture of black groove stripes.
Source V. Hartikainen
A dark pattern made out of 3×3 circles and a 1px shadow. This works well as a carbon texture or background.
Source Atle Mo
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
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
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
One more sharp little tile for you. Subtle circles this time.
Source Blunia
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
A pattern drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
Formed by distorting a JPG from PublicDomainPictures
Source Firkin