Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
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
Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
Subtle scratches on a light gray background.
Source Andrey Ovcharov
A free seamless background pattern for use on websites.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Here's a new background image for websites with a seamless pink texture. It should look beautiful with website themes where light pink background is needed. The background is seamless, therefore it should be used as a tiled background.
Source V. Hartikainen
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
By popular request, an outline version of the pentagon pattern.
Source Atle Mo
Formed by distorting a JPG from PublicDomainPictures
Source Firkin