This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Prismatic Polka Dots Mark II No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
Background formed from the original with an emboss effect
Source GDJ
A seamless pattern formed from background pattern 102
Source Firkin
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
Original seamless pattern with an Inkscape filter.
Source Firkin
Prismatic Basic Pattern 2 No Background
Source GDJ
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin