This background pattern has futuristic look. So, maybe it could be used on websites or blogs dedicated to video games?!
Source V. Hartikainen
A heavy hitter at 400x400px, but lovely still.
Source Breezi
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
From a drawing in 'Picturesque New Guinea', J Lindt, 1887.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that 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
This was formed by distorting an image of a background on Pixabay.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
The original has been presented as black on transparent and stored in the pattern definitions. To retrieve the unit tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
A free grid paper background pattern for using on web sites.
Source V. Hartikainen
This is a seamless pattern of a woody texture.The original image is here:https://pixabay.com/ja/users/ClassicallyPrinted-1302233/
Source Yamachem
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin