Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
From a drawing in 'Two Women in the Klondike', Mary Hitchcock, 1899.
Source Firkin
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
From a drawing in 'Less Black than we're painted', James Payn, 1884.
Source Firkin
Run a restaurant blog? Here you go. Done.
Source Andrijana Jarnjak
Prismatic Groovy Concentric Background 4
Source GDJ
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
White handmade paper pattern with small bumps.
Source Marquis
Green Background Pattern
Source V. Hartikainen
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Zero CC tileable seed texture, edited by me to be seamless from a Pixabay image. CC0
Source Sojan Janso
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Prismatic Polyskelion Pattern No Background
Source GDJ
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
Prismatic Abstract Background Design
Source GDJ
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib