Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Black brick wall pattern. Brick your site up!
Source Alex Parker
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
I have no idea how to describe this one, but it’s light and delicate.
Source JBasoo
A pale olive green background with a seamless texture.
Source V. Hartikainen
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
Otis Ray Redding was an American soul singer-songwriter, record producer, arranger, and talent scout. So you know.
Source Thomas Myrman
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Derived from an image that was uploaded to Pixabay by TheDigitalArtist
Source Firkin
Zero CC asphalt, pavement, texture, photographed and made by me. CC0 WARNING I FOUND A SEAM ON THIS TEXTURE
Source Sojan Janso
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman