Seamless Green Tile Background
Source V. Hartikainen
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
To get the repeating unit, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
Zero CC tileable hard cover cells, skin like, book texture. 4K, Scanned and made by me CC0
Source Sojan Janso
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
You know I love paper patterns. Here is one from Stephen. Say thank you!
Source Stephen Gilbert
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Kaleidoscope Prismatic Abstract No Background
Source GDJ
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
Just like the black maze, only in light gray. Duh.
Source Peax
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin