From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
The following free background pattern has glossy diagonal stripes as a texture to it, and it's colored in a light blue gray color. This background pattern is suitable for using in web design or any other graphic design projects. This applies to all background patterns here.
Source V. Hartikainen
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
A seamless pattern formed from cross 4. To get the original tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin
Green Web Background, Seamless tile.
Source V. Hartikainen
Prismatic Hexagonalist Pattern No Background
Source GDJ
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Tiny circle waves, almost like the ocean.
Source Sagive
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman