A free seamless background with pink spots.
Source V. Hartikainen
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A seamlessly tile-able grunge background image.
Source V. Hartikainen
This one has rusty dark brown texture.
Source V. Hartikainen
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Background formed from the original with an emboss effect
Source GDJ
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica