Prismatic Groovy Concentric Background No Black
Source GDJ
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
The perfect pattern for all your blogs about type, or type-related matters.
Source Atle Mo
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.
Source V. Hartikainen
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Subtle scratches on a light gray background.
Source Andrey Ovcharov
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin