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
Derived from a drawing in 'Historiske Afhandlinger', Adolf Jorgensen, 1898.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
A bit of scratched up grayness. Always good.
Source Dmitry
The perfect pattern for all your blogs about type, or type-related matters.
Source Atle Mo
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Remixed from a drawing in 'Incidents on a Journey through Nubia to Darfoor', F. Ensor, 1891.
Source Firkin
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
A seamless pattern formed from a modified version of rwwgub's tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
A series of 5 patterns. That’s what the P stands for, if you didn’t guess it.
Source Dima Shiper
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
A seamless pattern created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
A new one called white wall, not by me this time.
Source Yuji Honzawa
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo