Subtle Carbon@2X #950
Dark CC BY-SA 3.0There are many carbon patterns, but this one is tiny.
Source Designova
More Textures
Dark Sharp Edges #1320
Dark CC BY-SA 3.0Some dark 45 degree angles creating a nice pattern. Huge.
Source Dark Sharp Edges
Arrows decorative divider #1907
Dark CC 0Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Visual illusion #2586
Grid CC 0The edges of all the red objects line up either vertically or horizontally, but it doesn't appear so. Made from a square tile that can be got by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Abstract Line Art Pattern Background #565
Dark CC 0Prismatic Abstract Line Art Pattern Background
Source GDJ
Gold Wall & Dark #1254
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Arches@2X #716
Light CC BY-SA 3.0One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Bird pattern (colour 2) #2292
Green CC 0Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Light Orange Brown Wallpaper #911
Stripes CC BY-SA 3.0A free light orange brown wallpaper with vertical stripes designed for use as a tiled background on websites. An yet another background pattern with vertical stripes.
Source V. Hartikainen
Dark Denim #372
Dark CC BY-SA 3.0Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Hexabump@2X #954
Dark CC BY-SA 3.0Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Fabric of Squares@2X #1096
Light CC BY-SA 3.0As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
Lined Paper@2X #1035
Light CC BY-SA 3.0I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Background pattern #1942
Brown CC 0Formed by distorting an image on Pixabay that was uploaded by gustavorezende. To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background pattern 291 #1931
Dark CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Light Note Paper #942
Stripes CC BY-SA 3.0Here's an yet another seamless note paper texture for use as a background on websites.
Source V. Hartikainen
Small Crosses@2X #116
Stripes CC BY-SA 3.0Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Wavy background #2012
Green CC 0A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Reticular Tissue@2X #764
Light CC BY-SA 3.0The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Ravenna #354
Wall CC BY-SA 3.0I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
Silver Scales #189
Light CC BY-SA 3.0Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Subtle Carbon #949
Dark CC BY-SA 3.0There are many carbon patterns, but this one is tiny.
Source Designova
Cube Well & Blue #1699
Wall CC 0Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous