Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
A dark metallic background with a pattern of stamped dots. Here's a dark "metallic" background pattern for you.
Source V. Hartikainen
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Zero CC tileable grass texture, photographed and made by me. CC0
Source Sojan Janso
A seamless pattern formed from miutopia's cakes on a tablecloth.
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
The original enhanced with some gradients.
Source Firkin
Here I have tried to create something that would look like maple wood. Not sure how well it's turned out, but at least it looks like wood.
Source V. Hartikainen
Prismatic Groovy Concentric Background
Source GDJ
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
Colour version of the original pattern.
Source Firkin
A comeback for you: the popular Escheresque, now in black.
Source Patten
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
ZeroCC tileable beechwood wood texture, generated in Neo Texture Edit by me. CC0
Source Sojan Janso
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem