Adapted from an image that was uploaded to Pixabay by Anerma.
Source Firkin
Prismatic Groovy Concentric Background 2
Source GDJ
Gold Triangular Seamless Pattern No Background
Source GDJ
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Abstract Ellipses Background Grayscale
Source GDJ
This is a seamless pattern of regular hexagon which has a honeycomb structure.
Source Yamachem
The name tells you it has curves. Oh yes, it does!
Source Peter Chon
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen