Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
A nice and simple white rotated tile pattern.
Source Another One
Pattern produced in Paint.net using the Vibrato plug-in.
Source Firkin
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
Prismatic Hypnotic Pattern No Background
Source GDJ
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
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 seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
Remixed from an image that was uploaded to Pixabay by KirstenStar
Source Firkin
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
Here's an yet another seamless note paper texture for use as a background on websites.
Source V. Hartikainen
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Inspired by a pattern I saw in a 19th century book. This seamless pattern was created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
From a drawing in 'Hyde Park from Domesday-Book to date', John Ashton, 1896.
Source Firkin