A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
From a drawing of the coat of arms of the Ottoman Empire on Wikimedia.
Source Firkin
A blue background wallpaper for websites. It has a seamless texture with vertical stripes. It looks quite nice not only when using as a tiled background on websites, but also on computer desktops.
Source V. Hartikainen
This light blue background pattern is quite pleasing to the eye, it consists of a tiny rough grid pattern, which is seamless by design. That's it, if you like the color, you can use this seamless pattern in a web design without making any further modifications to it.
Source V. Hartikainen
A pattern drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Used the 6th circle pattern designed by Viscious-Speed to create a print that can be used for card making or scrapbooking. Save as a PDF file for the best printing option.
Source Lovinglf
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Plywood Web Background background image for use in web design.
Source V. Hartikainen
This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin