A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Classic vertical lines, in all its subtlety.
Source Cody L
Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
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
A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Derived from a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin
Nicely executed tiling for an interesting pattern.
Source Ignasi Àvila Padró
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Prismatic Abstract Geometric Background derived from an image on Pixabay.
Source GDJ
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
More in the paper realm, this time with fibers.
Source Jorge Fuentes
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
Green Web Background, Seamless tile.
Source V. Hartikainen
The image depicts a seamless pattern of the design which includes a stylized lotus and a stylized crane.I referred to the original image in a book which is into public domain.
Source Yamachem
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
A seamless pattern formed from a tile made from page ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
Number five from the same submitter, makes my job easy.
Source Dima Shiper
More in the paper realm, this time with fibers.
Source Jorge Fuentes
A tile-able background for websites with paper-like texture and a grid pattern layered on top of it.
Source V. Hartikainen