A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background 2
Source GDJ
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
Zero CC tileable cork floor, photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
Prismatic Abstract Geometric Background 5
Source GDJ
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
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin