Another fairly simple design drawn in Paint.net and vectorized in Inkscape.
Source Firkin
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
Alternative colour scheme for the original floral pattern.
Source Firkin
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Prismatic Polka Dots 3 No Background
Source GDJ
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.
Source V. Hartikainen
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Seamless Green Tile Background
Source V. Hartikainen