A seamless pattern with a unit cell drawn as a bitmap in Paint.net and vectorized in Vector Magic.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
A free pink background pattern.
Source V. Hartikainen
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Prismatic Groovy Concentric Background 5
Source GDJ
Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
A bit of scratched up grayness. Always good.
Source Dmitry
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Seamless Olive Green Web Background Image
Source V. Hartikainen
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
Kaleidoscope Prismatic Abstract No Background
Source GDJ
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward