Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
The tile can be had by using shift+alt+i on the selected rectangle in Inkscape
Source Firkin
Derived from a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
This is the remix of "Background pattern 115" uploaded by "Firkin".Thanks.
Source Yamachem
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
Sharp pixel pattern, just like the good old days.
Source Paridhi
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Colorful Floral Background 3 No Black
Source GDJ
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
CC0 and seamless wellington boot pattern.
Source SliverKnight
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
A new one called white wall, not by me this time.
Source Yuji Honzawa
A repeating graphic with ancient pattern. I came up with this name/title at last minute, so you may find that there is very little of ancientness in this pattern after all.
Source V. Hartikainen
A seamlessly tileable pink background texture.
Source V. Hartikainen
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin