Tiny circle waves, almost like the ocean.
Source Sagive
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Zero CC tileable hard cover cells book texture, 4k, scanned and made by me. CC0
Source Sojan Janso
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
Prismatic Abstract Geometric Background 4
Source GDJ
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
An alternative colour scheme for the original seamless texture formed from an image on Pixabay.
Source Firkin
A pattern derived from part of a fractal rendering in Paint.net.
Source Firkin
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
The following repeating website background is colored in a blue gray color and resembles a concrete wall or something similar to it.
Source V. Hartikainen
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Prismatic Abstract Geometric Background 2
Source GDJ
A white version of the very popular linen pattern.
Source Ant Ekşiler
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Prismatic Abstract Geometric Background 5
Source GDJ
Remixed from a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Zero CC tileable cork floor, photographed and made by me. CC0
Source Sojan Janso