Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Textured Red Brown Plastic, Free Background Pattern. Although there's already enough plastic in our lives, let's bring it to the web too.)
Source V. Hartikainen
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
From a drawing in 'Codogno e il suo territorio nella cronaca e nella storia'', Gio and Giarella Cairo, 1897.
Source Firkin
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
Uses spirals from Pixabay. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Prismatic Groovy Concentric Background
Source GDJ
A seamlessly tileable pink background texture.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
A seamless pattern formed from a square tile based on a jpg on Pixabay. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Prismatic Triangular Background Design Mark II 5
Source GDJ
Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
Embossed lines and squares with subtle highlights.
Source Alex Parker
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett