To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Here's a new paper-like background for free use on personal and commercial projects (this applies to all background patterns here).
Source V. Hartikainen
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
The base gradient edited so now more details are rendered.
Source Lazur URH
Fix and cc0 to get the tile this is based on.
Source SliverKnight
A classic dark tile for a bit of vintage darkness.
Source Listvetra
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
This seamless pattern consists of a blue grid on a yellow background.
Source V. Hartikainen
Black brick wall pattern. Brick your site up!
Source Alex Parker
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Sort of reminds me of those old house wallpapers.
Source Tish
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Seamless pattern formed from a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Zero CC tileable grass texture, photographed and made by me. CC0
Source Sojan Janso
Like the name suggests, this background image consists of a pattern of dark bricks. It may be an option for you, if you are looking for something that looks like a brick wall for use as a background on web pages. It's not a masterpiece, but looks pretty nice when is tiled.
Source V. Hartikainen
Colorful Floral Background No Black
Source GDJ