Could be paper, could be a Polaroid frame – up to you!
Source Chaos
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Inspired by a JPG that was uploaded to Pixabay by kokon_art
Source Firkin
The following repeating website background is colored in a blue gray color and resembles a concrete wall or something similar to it.
Source V. Hartikainen
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
This is the remix of an OCAL clipart called "Rain on Window" uploaded by "pagarmidna".Thanks.This is a seamless pattern of raindrops.
Source Yamachem
Prismatic Geometric Pattern Background No Black
Source GDJ
Remixed from a drawing that was uploaded to Pixabay by DavidZydd
Source Firkin
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
This one is amazing, truly original. Go use it!
Source Viahorizon
A seamless textured paper for backgrounds. Colored in pale orange hues.
Source V. Hartikainen
Derived from an image that was uploaded to Pixabay by starchim01
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
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
Looks like an old wall. I guess that’s it then?
Source Viahorizon
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers