Black brick wall pattern. Brick your site up!
Source Alex Parker
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
Bark style CC0 texture.
Gamedev - Concrete Textures. CC0 License.
Source Davit Masia
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Derived from elements found in a floral ornament drawing on Pixabay.
A colorful triangular background, variation 4.
Sort of reminds me of those old house wallpapers.
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
Prismatic Abstract Geometric Background 4
Prismatic Groovy Concentric Background 5 No Black
Seamless pattern the tile.
A pattern drawn in Paint.net and vectorized in Vector Magic.
Metal-Plain or Painted. CC0 License.
Prismatic Groovy Concentric Background 4 No Black
Formed from decorative divider 184 in paint.net. Vectorised with Vector Magic.
*** Released Now !! ***Download
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Retro Squares Background 9
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
CC0 textures, backgrounds.
This is a light-brown cloth texture.
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
A free web background image with a seamless concrete-like texture and an Indian-red color.
Source V. Hartikainen
Incoming catena. Stone & well. CC0 texture.
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.
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
Seamless Core Pattern 5
Seamless pattern formed from a key and lock.