To get the repeating unit, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Geometric triangles seem to be quite hot these days.
Source Pixeden
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
Heavily remixed from a drawing in 'Barbara Leybourne; a story of eighty years ago', Sarah Hamer, 1889.
Source Firkin
I’m not going to lie – if you submit something with the words Norwegian and Rose in it, it’s likely I’ll publish it.
Source Fredrik Scheide
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
This was formed by distorting an image of a background on Pixabay.
Source Firkin
From a drawing in 'Two Women in the Klondike', Mary Hitchcock, 1899.
Source Firkin
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
Looks as if it's spray painted on the wall. You can be sure that this pattern will seamlessly fill your backgrounds on web pages.
Source V. Hartikainen
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin