Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-yellow.
Source Yamachem
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
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
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Oh yes, it happened! A pattern in full color.
Source Atle Mo
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Fix side and a seamless pattern formed from circles.
Source SliverKnight
8 by 8 pixels, and just what the title says.
Source pixilated
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
You guessed it – looks a bit like cloth.
Source Peax Webdesign
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin