This one needs to be used in small areas; you can see it repeat.
Source Luca
Here's an yet another seamless note paper texture for use as a background on websites.
Source V. Hartikainen
Prismatic Abstract Line Art Pattern Background
Source GDJ
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .
Source Yamachem
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
One more updated pattern. Not really carbon fiber, but it’s the most popular pattern, so I’ll give you an extra choice.
Source Atle Mo
A repeating background with seamless texture of stone. There haven't been any stone-like backgrounds for a while, so I have decided to create one more. The rest can be found in the appropriate category.
Source V. Hartikainen
Run a restaurant blog? Here you go. Done.
Source Andrijana Jarnjak
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
From a drawing in 'A Life Interest', Mrs Alexander, 1888.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
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