A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
Original seamless pattern with an Inkscape filter.
Source Firkin
A background pattern with green vertical stripes. A new striped background pattern. This time a green one.
Source V. Hartikainen
A white version of the very popular linen pattern.
Source Ant Ekşiler
The image depicts meshed silhouettes of various things.The original image is an OCAL clipart called "Enter FOSSASIA 2016 #IoT T-shirt Design Contest" uploaded by "openclipart".Thanks.
Source Yamachem
Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
I’m not going to use the word Retina for all the new patterns, but it just felt right for this one. Huge wood pattern for ya’ll.
Source Atle Mo
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Colored maple leaves scattered on a surface. This is tileable, so it can be used as a background or wallpaper.
Source Eady
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
A free black metallic background pattern. Here's a new pattern I made that looks metallic.
Source V. Hartikainen
One more updated pattern. Not really carbon fiber, but it’s the most popular pattern, so I’ll give you an extra choice.
Source Atle Mo
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
A seamless pattern formed from miutopia's cakes on a tablecloth.
Source Firkin
An abstract texture of black metal pipes (seamless).
Source V. Hartikainen
Background pattern originally a PNG drawn in Paint.net
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
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury