Seamless Green Tile Background
Source V. Hartikainen
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
Dark blue concrete wall with some small dust spots.
Source Atle Mo
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Wasn't satisfied with the original's colouring. Too much component transfer and colormatrixes yet the results are lacking a bit. So this time it is a simple black to transparent fade, making it possible remixing easily once there will be other blending modes supported as well. Probably in inkscape 0.92.
Source Lazur URH
Might not be super subtle, but quite original in its form.
Source Alex Smith
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Seamless Green Tile Background
Source V. Hartikainen
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
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
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
It looks very nice I think.
Source V. Hartikainen
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Inspired by a drawing seen in 'City of Liverpool', James Picton, 1883.
Source Firkin