Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Inspired by an image that was uploaded to Pixabay by geralt
Source Firkin
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
A new one called white wall, not by me this time.
Source Yuji Honzawa
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Green Web Background, Seamless tile.
Source V. Hartikainen
On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.
Source Paul Phönixweiß