Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
Remixed from a PNG that was uploaded to Pixabay by VictorianLady
Source Firkin
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
A new one called white wall, not by me this time.
Source Yuji Honzawa
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
CC0 and seamless wellington boot pattern.
Source SliverKnight
Abstract Tiled Background Extended 12
Source GDJ
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics