The classic notebook paper with horizontal stripes.
Source Are Sundnes
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Source Firkin
Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
Looks like an old rug or a computer chip.
Source Patutin Sergey
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
The image a seamless pattern derived from a weed which I can't identify.The original weed image is from here:https://jp.pinterest.com/pin/500744052301423641/
Source Yamachem
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks. https://cloaks.deviantart.com
Source Atle Mo
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Looks like an old wall. I guess that’s it then?
Source Viahorizon
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Classic 45-degree pattern, light version.
Source Luke McDonald
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay