As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
A dark pattern made out of 3×3 circles and a 1px shadow. This works well as a carbon texture or background.
Source Atle Mo
The image depicts polka dot seamless pattern.
Source Yamachem
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Remixed from a drawing in 'An Index to Deering's Nottinghamia Vetus et Nova', Rupert Chicken, 1899. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
Zero CC tileable wood texture, made by me procedurally in Neo Texture Edit.
Source Sojan Janso
This light yellow background pattern consists of an irregular pattern of spots. Here's a light background pattern with yellowish tint.
Source V. Hartikainen
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
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
The image depicts meshed silhouettes of various things.The original image is an OCAL clipart called "Enter FOSSASIA 2016 #IoT T-shirt Design Contest" uploaded by "openclipart".Thanks.
Source Yamachem
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
The name is totally random, but hey, it sounds good.
Source Atle Mo
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
Prismatic Groovy Concentric Background 3
Source GDJ
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Prismatic Snowflakes Pattern No Background
Source GDJ
Prismatic Floral Background No Black
Source GDJ
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo