A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
I scanned a paper coffee cup. You know, in case you need it.
Source Atle Mo
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
Sharp but soft triangles in light shades of gray.
Source Pixeden
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
A seamless background tile of aged paper with shabby look.
Source V. Hartikainen
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
A free pink background pattern.
Source V. Hartikainen
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Colour version of the original pattern inspired by the front cover of 'Old and New Paris', Henry Edwards, 1894.
Source Firkin
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Tiny circle waves, almost like the ocean.
Source Sagive
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
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
Zero CC plastic pattern texture, photographed and made by me. CC0 *Note, this texture was on the perfectly smooth surface of a plastic shovel scraper, not sure how to call it. Plz coment if you know what its called.
Source Sojan Janso
A seamless canvas texture for using as background on websites. Colored in pale tones of brown.
Source V. Hartikainen