Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
A seamlessly tile-able grunge background image.
Source V. Hartikainen
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
A heavy hitter at 400x400px, but lovely still.
Source Breezi
A seamless background pattern with a texture of wood planks. This wood background pattern has vertically arranged planks. You may try to rotate it 90°, to see how it will look like when the wood planks are arranged horizontally.
Source V. Hartikainen
Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Nicely executed tiling for an interesting pattern.
Source Ignasi Àvila Padró
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
A free background pattern with abstract green tiles.
Source V. Hartikainen
A new take on the black linen pattern. Softer this time.
Source Atle Mo
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin