A seamless pattern with a unit cell drawn as a bitmap in Paint.net and vectorized in Vector Magic.
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
The classic notebook paper with horizontal stripes.
Source Are Sundnes
From a drawing in 'Hyde Park from Domesday-Book to date', John Ashton, 1896.
Source Firkin
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
8 by 8 pixels, and just what the title says.
Source pixilated
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Clover with background for St. Patrick's Day. Add to a card with a doily, ribbon, a leprechaun or other embellishments.
Source BAJ
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle
Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.
Source Atle Mo
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
A seamless pattern formed from background pattern 102
Source Firkin