Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i
Source Firkin
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
A comeback for you: the popular Escheresque, now in black.
Source Patten
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
More carbon fiber for your collections. This time in white or semi-dark gray.
Source Badhon Ebrahim
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Inspired by the B&O Play, I had to make this pattern.
Source Atle Mo
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
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
Geometric triangles seem to be quite hot these days.
Source Pixeden
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
Green Web Background, Seamless tile.
Source V. Hartikainen