A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
There are many carbon patterns, but this one is tiny.
Source Designova
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
A free black metallic background pattern. Here's a new pattern I made that looks metallic.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Prismatic Abstract Geometric Background 4
Source GDJ
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Remixed from a drawing in 'Some account of the Worshipful Company of Ironmongers', John Nicholl, 1866.
Source Firkin
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
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Triangular Background Design Mark II 5
Source GDJ
Sharp pixel pattern, just like the good old days.
Source Paridhi
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin