Prismatic Geometric Pattern Background No Black
Source GDJ
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
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
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks. https://cloaks.deviantart.com
Source Atle Mo
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
A cute x, if you need that sort of thing.
Source Juan Scrocchi
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall