Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
A comeback for you: the popular Escheresque, now in black.
Source Patten
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
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.
Source Firkin
A free grid paper background pattern for using on web sites.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis