Zig-zag pattern #2418
Grid CC 0A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
More Textures
Sports car pattern #2442
Red CC 0A seamless pattern formed from a sports car on clker.com. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Spirals pattern #1994
Colorful CC 0Uses spirals from Pixabay. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Background pattern 215 (colour 2) #2370
Blue CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Low Contrast Linen #863
Dark CC BY-SA 3.0A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Project Papper #119
Paper CC BY-SA 3.0Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Abstract Ellipses Background Grayscale #378
Dark CC 0Abstract Ellipses Background Grayscale
Source GDJ
Background pattern 272 (colour 2) #2056
Pink CC 0A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Background pattern 315 (colour 3) #1843
Green CC 0The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Glassy Orange Pattern #1315
Orange CC BY-SA 3.0This pattern comes in orange, and it looks as if it is "made of glass".
Source V. Hartikainen
Light Mesh #707
Fabric CC BY-SA 3.0Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
Large Leather #649
Paper CC BY-SA 3.0More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
Pinstriped Suit #665
Dark CC BY-SA 3.0Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Winding Stripes Background Pattern #1164
Fabric CC BY-SA 3.0A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
Background pattern 268 #2066
Dark CC 0Remixed from a drawing in 'Kulturgeschichte der Deutschen im Mittelalter' Franz von Loeher, 1891. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
Grunge Website Background #1122
Grunge CC BY-SA 3.0A seamlessly tile-able grunge background image.
Source V. Hartikainen
Geometric pattern #2006
Grid CC 0A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Prismatic Triangular Background Design Mark II 5 #406
Dark CC 0Prismatic Triangular Background Design Mark II 5
Source GDJ
P4 #1111
Light CC BY-SA 3.0I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
"Seamless Bark", Website Background. #879
Wood CC BY-SA 3.0This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
Background pattern 294 #1921
Dark CC 0Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin