This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
Run a restaurant blog? Here you go. Done.
Source Andrijana Jarnjak
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
This seamless background image should look nice on websites. It has a dark blue gray texture with vertical stripes, it tiles seamlessly and, like all of the background images here, it's free. So, if you like it, take it!
Source V. Hartikainen
Zero CC tileable dry grass texture, photographed and made by me. CC0
Source Sojan Janso
Seamless pattern inspired by a drawing on Pixabay. To get the tile this is formed from, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Seamless Light Background Texture.
Source V. Hartikainen
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
emixed from a JPG that was uploaded to Pixabay by Kyotime
Source Firkin
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
This is a hot one. Small, sharp and unique.
Source GraphicsWall
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Psychedelic Geometric Background No Black
Source GDJ
Prismatic Abstract Geometric Background 5
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo