A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Prismatic Snowflakes Pattern 2 No Background
Source GDJ
From a drawing in 'Real Sailor-Songs', John Ashton, 1891.
Source Firkin
The image depicts a Japanese Edo pattern called "kanoko or 鹿の子" meaning "fawn" which has a fur with small white spots.
Source Yamachem
The Grid. A digital frontier. I tried to picture clusters of information as they traveled through the computer.
Source Haris Šumić
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
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
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
8 by 8 pixels, and just what the title says.
Source pixilated
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
This one is amazing, truly original. Go use it!
Source Viahorizon
Colour version of the original pattern.
Source Firkin
Another fairly simple design drawn in Paint.net and vectorized in Inkscape.
Source Firkin
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
The image depicts polka dot seamless pattern.
Source Yamachem
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Background Wall, Art Abstract, Star Well & CC0 texture.
Source Ractapopulous
A seamless pattern formed from background pattern 102
Source Firkin