A seamless pattern with a unit cell drawn as a bitmap in Paint.net and vectorized in Vector Magic.
Source Firkin
Here's a seamless brown cork board background texture. Feel free to download or reshare if you like.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
You know you love wood patterns, so here’s one more.
Source Richard Tabor
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Floral Background No Black
Source GDJ
From a drawing in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
The following repeating website background is colored in a blue gray color and resembles a concrete wall or something similar to it.
Source V. Hartikainen
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter