Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
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
The tile for this is based on a repeating unit close to a design on Pixabay. It can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Pattern formed from simple shapes. Black version.
Source Firkin
Prismatic Floral Background No Black
Source GDJ
Derived from an image that was uploaded to Pixabay by TheDigitalArtist
Source Firkin
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
This light blue background pattern is quite pleasing to the eye, it consists of a tiny rough grid pattern, which is seamless by design. That's it, if you like the color, you can use this seamless pattern in a web design without making any further modifications to it.
Source V. Hartikainen
Prismatic Basic Pattern 2 No Background
Source GDJ
A brown metallic grid pattern layered on top of a dark fabric texture. It should look great when using as a tiled background on web pages, especially blogs.
Source V. Hartikainen
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Remixed from a drawing in 'Kulturgeschichte der Deutschen im Mittelalter' Franz von Loeher, 1891. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight