Background pattern 253 #2153
Brown CC 0A seamless pattern created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
More Textures
Snow@2X #628
Wall CC BY-SA 3.0Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
Triangular ornament 32 #2435
Dark CC 0Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
Classy Fabric@2X #612
Dark CC BY-SA 3.0This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
Cream Dust #980
Light CC BY-SA 3.0I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
Vintage pattern #1957
Grid CC 0Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Decorative divider #1995
Yellow CC 0From a drawing of the coat of arms of the Ottoman Empire on Wikimedia.
Source Firkin
Background pattern 225 (colour 2) #2326
Yellow CC 0Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Frozen Surface With Diagonal Stripes #912
Stripes CC BY-SA 3.0This light background pattern has a texture of "frozen" surface with diagonal stripes. Here's an yet another addition to the collection of free website backgrounds.
Source V. Hartikainen
Street Art Pattern #1196
Concrete CC BY-SA 3.0Looks as if it's spray painted on the wall. You can be sure that this pattern will seamlessly fill your backgrounds on web pages.
Source V. Hartikainen
Fabric pattern 2 (colour 4) #2393
Fabric CC 0Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Red Gemstone Tiles #1223
Red CC BY-SA 3.0This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.
Source V. Hartikainen
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
Glass block pattern #2477
Brown CC 0Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin