A free web background image with a seamless concrete-like texture and an Indian-red color.
Source V. Hartikainen
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Colourful background achieved with gradient fills.
Source Firkin
A seamless web texture of "green stone".
Source V. Hartikainen
Looks like an old wall. I guess that’s it then?
Source Viahorizon
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin