And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
A seamless texture of black leather. I think it will look best when used in headers, footers or sidebars.
Source V. Hartikainen
Alternative colour scheme for the original floral pattern.
Source Firkin
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/
Source Yamachem
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
Prismatic Groovy Concentric Background
Source GDJ
By popular request, an outline version of the pentagon pattern.
Source Atle Mo
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran