This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
This was formed by distorting an image of a background on Pixabay.
Source Firkin
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
An attempt for cleaning up the original image in a few steps.
Source Lazur URH
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Background pattern originally a PNG drawn in Paint.net
Source Firkin
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
A seamless pattern formed from a rectangular tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
Prismatic Abstract Geometric Background 3
Source GDJ
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
The texture of this background image has some similarities with leather, and it's colored in a dark brown color. So, if you are looking for a dark brown background image for your website, this may be an option for you.
Source V. Hartikainen