A free grid paper background pattern for using on web sites.
Source V. Hartikainen
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Uses spirals from Pixabay. To get the basic tile 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
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
A blue background wallpaper for websites. It has a seamless texture with vertical stripes. It looks quite nice not only when using as a tiled background on websites, but also on computer desktops.
Source V. Hartikainen
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin