From a drawing in 'La Principauté de Liège et les Pays-Bas au XVIe siècle', Société des Bibliophiles Liégeois ,1887.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
This is sort of fresh, but still feels a bit old school.
Source Martuchox
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Prismatic Abstract Line Art Pattern Background
Source GDJ
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Element of beach pattern with background.
Source Rones
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
It’s big, it’s gradient—and it’s square.
Source Brankic1979
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
Alternative colour scheme. 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
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin