Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ
Background pattern originally a PNG drawn in Paint.net
Source Firkin
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
Prismatic Snowflakes Pattern 2 No Background
Source GDJ
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
Original minus the background
Source Firkin
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Feel free to use this seamless background texture as a background on a web site. It's colored in a light pink color and is seamlessly tile-able.
Source V. Hartikainen
Formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Remixed from a PNG that was uploaded to Pixabay by k_jprather
Source Firkin
A rusty grunge background for websites. Feel free to use it in your site's theme.
Source V. Hartikainen
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
From a drawing in 'Prose and Verse ', William Linton, 1836.
Source Firkin