This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
A seamless pattern formed from a square tile based on a jpg on Pixabay. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
A bit of scratched up grayness. Always good.
Source Dmitry
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Fix and cc0 to get the tile this is based on.
Source SliverKnight
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
The image depicts a tiled seamless pattern.The tile represents four leaves aligned every 90 ° , which may look like a bird or a dragon .The original leaf design is from a Japanese old book.
Source Yamachem
Prismatic Abstract Geometric Background 4
Source GDJ
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.
Source V. Hartikainen
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Black And White Floral Pattern Background Inverse
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This background pattern has futuristic look. So, maybe it could be used on websites or blogs dedicated to video games?!
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless texture of a rough concrete surface.
Source V. Hartikainen
Prismatic Chevrons Pattern 5 With Background
Source GDJ
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.