Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Prismatic Groovy Concentric Background 2
Source GDJ
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Remixed from an image that was uploaded to Pixabay by CatherineClennan
Source Firkin
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
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
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
8 by 8 pixels, and just what the title says.
Source pixilated
Prismatic Polka Dots Mark II No Background
Source GDJ
Original seamless pattern with an Inkscape filter.
Source Firkin
Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
A seamless pattern formed from background pattern 102
Source Firkin
Zero CC tileable hard cover cells book texture, 4k, scanned and made by me. CC0
Source Sojan Janso