If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a drawing in 'Incidents on a Journey through Nubia to Darfoor', F. Ensor, 1891.
Source Firkin
A seamlessly tileable pink background texture.
Source V. Hartikainen
Colourful background achieved with gradient fills.
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
A web texture of brown canvas. Will look great, when used in dark web designs.
Source V. Hartikainen
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
A pattern drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
This is a hot one. Small, sharp and unique.
Source GraphicsWall
A free black metallic background pattern. Here's a new pattern I made that looks metallic.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso