To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Prismatic Abstract Geometric Background 4
Source GDJ
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
A seamless pattern formed from a sports car on clker.com. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
Same classic 45-degree pattern, dark version.
Source Luke McDonald
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf