The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .
Source Yamachem
Prismatic Groovy Concentric Background
Source GDJ
Prismatic Floral Background No Black
Source GDJ
CC0 remixed from a drawing. Walter Crane, 1914, Firkin.
Source SliverKnight
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
Old China with a modern twist, take two.
Source Adam Charlts
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
This is the remix of an OCAL clipart called "Art Nouveau ornament" uploaded by "microcosme".Thanks.This is a seamless pattern of an Art Nouveau ornament.
Source Yamachem