You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
This is the remix of "plant pattern 02".I changed the object color to white and the BG to purple.The image a seamless pattern derived from a weed which I can't identify.The original weed image is from here:jp.pinterest.com/pin/500744052301423641/
Source Yamachem
This metal background pattern resembles a metal plate with rivets. Solid rivets on a metal plate.
Source V. Hartikainen
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Abstract Tiled Background Extended 10
Source GDJ
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.
Source Firkin
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
More carbon fiber for your collections. This time in white or semi-dark gray.
Source Badhon Ebrahim
Used the 6th circle pattern designed by Viscious-Speed to create a print that can be used for card making or scrapbooking. Save as a PDF file for the best printing option.
Source Lovinglf
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868.
Source Firkin