Heavily remixed from a drawing in 'Barbara Leybourne; a story of eighty years ago', Sarah Hamer, 1889.
Source Firkin
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
8 by 8 pixels, and just what the title says.
Source pixilated
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Prismatic Groovy Concentric Background 2
Source GDJ
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
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 one is amazing, truly original. Go use it!
Source Viahorizon
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
A web texture of brown canvas. Will look great, when used in dark web designs.
Source V. Hartikainen
A dark background pattern/texture of a dimpled metal plate.
Source V. Hartikainen
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo