Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
Prismatic Snowflakes Pattern 2 No Background
Source GDJ
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.
Source Firkin
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
Zero CC tileable hard cover red book, scanned and made by me. CC0
Source Sojan Janso
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless pattern with a unit cell drawn as a bitmap in Paint.net and vectorized in Vector Magic.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
Very simple, very blu(e). Subtle and nice.
Source Seb Jachec
Remixed from a drawing that was uploaded to Pixabay by DavidZydd
Source Firkin
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
A seamless background of warped stripes on paper.
Source V. Hartikainen
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin