CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Remixed from a drawing that was uploaded to Pixabay by DavidZydd
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
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
Psychedelic Geometric Background No Black
Source GDJ
You guessed it – looks a bit like cloth.
Source Peax Webdesign
An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
Remixed from a PNG that was uploaded to Pixabay by gingertea
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Background Wall, Art Abstract, Star Well & CC0 texture.
Source Ractapopulous
Prismatic Geometric Pattern Background No Black
Source GDJ
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
From a drawing in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Remixed from a drawing in 'Incidents on a Journey through Nubia to Darfoor', F. Ensor, 1891.
Source Firkin
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
Prismatic Abstract Geometric Background 4
Source GDJ