A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
The image depicts a seamless pattern of the design which includes a stylized lotus and a stylized crane.I referred to the original image in a book which is into public domain.
Source Yamachem
This seamless background image should look nice on websites. It has a dark blue gray texture with vertical stripes, it tiles seamlessly and, like all of the background images here, it's free. So, if you like it, take it!
Source V. Hartikainen
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo
Black paper texture, based on two different images.
Source Atle Mo
Based from Design Kindle
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Prismatic Abstract Geometric Background 4
Source GDJ
Prismatic Groovy Concentric Background 2
Source GDJ
A seamless texture of an abstract wall colored in shades of light orange brown.
Source V. Hartikainen
A repeating gloomy background image. This one consists of a pattern of black chains layered on top of a dark textured background.
Source V. Hartikainen
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
Zero CC tileable yellow craft paper; scanned and made by me. CC0
Source Sojan Janso
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton