A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
A nice and simple white rotated tile pattern.
Source Another One
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
A seamless pattern created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Light and tiny, just the way you like it.
Source Rohit Arun Rao
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
The image a seamless pattern derived from a weed which I can't identify.The original weed image is from here:https://jp.pinterest.com/pin/500744052301423641/
Source Yamachem
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
White little knobs, coming in at 10x10px. Sweet!
Source Amos
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A seamless canvas texture for using as background on websites. Colored in pale tones of brown.
Source V. Hartikainen
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova