You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
To get the repeating unit, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
The image is the remix of "wire-mesh fence seamless pattern" .This is a more minute version of it.Sorry for the file size.Using path>difference in Inkscape, I will cut out any silhouette from this pattern and create a "meshed silhouette".
Source Yamachem
Derived from a JPG that was uploaded to Pixabay by ractapopulous
Source Firkin
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
This was formed by distorting an image of a background on Pixabay.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
A free tileable background colored in off-white (antique white) color.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A frame using leaves from an image that was uploaded to Pixabay by mayapujiati
Source Firkin
From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
Abstract Tiled Background Extended 12
Source GDJ
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
A seamless pattern with green and yellow diagonal lines on top of a white dotted background.
Source V. Hartikainen
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
This light background pattern has a texture of "frozen" surface with diagonal stripes. Here's an yet another addition to the collection of free website backgrounds.
Source V. Hartikainen