Lovely pattern with some good-looking non-random noise lines.
Source Zucx
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
A seamless background texture of old cardboard.
Source V. Hartikainen
Continuing the geometric trend, here is one more.
Source Mike Warner
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
Black brick wall pattern. Brick your site up!
Source Alex Parker
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
A free background pattern with abstract green tiles.
Source V. Hartikainen
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
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
You know I love paper patterns. Here is one from Stephen. Say thank you!
Source Stephen Gilbert
Black brick wall pattern. Brick your site up!
Source Alex Parker
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
A seamless pattern with a unit cell drawn as a bitmap in Paint.net and vectorized in Vector Magic.
Source Firkin
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Prismatic Polyskelion Pattern No Background
Source GDJ
Here is a new seamless wood texture for using as blog or website backgrounds.
Source V. Hartikainen