Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
Prismatic Basic Pattern 2 No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A version without colours blended together to give a different look.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Zero CC tileable ground cracked, crackled, texture, made by me.
Source Sojan Janso
This one needs to be used in small areas; you can see it repeat.
Source Luca
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
It’s big, it’s gradient—and it’s square.
Source Brankic1979
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo