Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.
Source V. Hartikainen
The image depicts a seamless pattern of pine tree leaves.
Source Yamachem
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
Source Firkin
f you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A seamless pattern formed from cross 4. To get the original tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
Kaleidoscope Prismatic Abstract No Background
Source GDJ
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Source Firkin
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A background pattern with wavy green vertical stripes. This one has green stripes on a white background. Download if you like it.
Source V. Hartikainen
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
A seamless stone-like background for blogs or any other type of websites.
Source V. Hartikainen
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Classic vertical lines, in all its subtlety.
Source Cody L
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim