After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Prismatic Chevrons Pattern 5 With Background
Source GDJ
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Green Web Background, Seamless tile.
Source V. Hartikainen
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
A seamless texture of worn out "cardboard".
Source V. Hartikainen
The original has been presented as black on transparent and stored in the pattern definitions. To retrieve the unit tile select the rectangle in Inkscape and use shift+alt+i
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
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless background tile of aged paper with shabby look.
Source V. Hartikainen
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
There are many carbon patterns, but this one is tiny.
Source Designova
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed