Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
White circles connecting on a light gray background.
Source Mark Collins
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Psychedelic Geometric Background No Black
Source GDJ
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Spice up your next school project with this icon background.
Source Swetha
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
The tile for this is based on a repeating unit close to a design on Pixabay. It can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A free seamless background pattern for use on websites.
Source V. Hartikainen
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
This is a seamless pattern of regular hexagon which has a honeycomb structure.
Source Yamachem
Fix and cc0 to get the tile this is based on.
Source SliverKnight
It looks very nice I think.
Source V. Hartikainen
Black brick wall pattern. Brick your site up!
Source Alex Parker
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
ZeroCC tileable beechwood wood texture, generated in Neo Texture Edit by me. CC0
Source Sojan Janso
Prismatic Groovy Concentric Background 5
Source GDJ
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin