From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
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
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks. https://cloaks.deviantart.com
Source Atle Mo
A version without colours blended together to give a different look.
Source Firkin
Prismatic Geometric Pattern Background
Source GDJ
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
The image depicts an edo-era pattern called "same-komon" or "鮫小紋"which looks like a shark skin.The "same" in Japanese means shark in English.
Source Yamachem
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Seamless Prismatic Geometric Pattern With Background
Source GDJ
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
Number five from the same submitter, makes my job easy.
Source Dima Shiper
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua