This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
This seamless light brown background texture resembles a wallpaper with vertical stripes. One way to use it is as a tiled background on web sites.
Source V. Hartikainen
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
The base gradient edited so now more details are rendered.
Source Lazur URH
Seamless pattern the basic tile for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
The tile for this is based on a repeating unit close to a design on Pixabay. It can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin
From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
Looks like an old wall. I guess that’s it then?
Source Viahorizon
Fix and cc0 to get the tile this is based on.
Source SliverKnight