The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. Version with black background.
Source Firkin
Geometric triangles seem to be quite hot these days.
Source Pixeden
An alternative colour scheme to the original seamless pattern.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Prismatic Abstract Background Design
Source GDJ
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
The classic notebook paper with horizontal stripes.
Source Are Sundnes
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
A seamless background tile of aged paper with shabby look.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin