Wine [email protected] #34
 Light  CC BY-SA 3.0

Wine cork texture based off a scanned corkboard.

Source Atle Mo

 More Textures
Dark [email protected] #321
 Wood  CC BY-SA 3.0

A beautiful dark wood pattern, superbly tiled.

Source Omar Alvarado

Subtle Website Background #1022
 Stone  CC BY-SA 3.0

Here's a subtle marble-like background for use on websites.

Source V. Hartikainen

Floral pattern 6 (colour 4) #2458
 Fabric  CC 0

Alternative colour scheme for the original floral pattern.

Source Firkin

Fence 9 (colour 2) #2194
 Wood  CC 0

A browner version of the original weathered fence texture.

Source Firkin

Green and Yellow Lines on White Background #1000
 Stripes  CC BY-SA 3.0

A seamless pattern with green and yellow diagonal lines on top of a white dotted background.

Source V. Hartikainen

Background pattern 245 (colour 3) #2190
 Blue  CC 0

This was formed by distorting an image of a background on Pixabay.

Source Firkin

Asfault 8 #1387
 Dark  CC 0

Gamedev - Asphalt textures. CC0 License.

Source Davit Masia

Light Grey Floral [email protected] #345
 Wall  CC BY-SA 3.0

Lovely light gray floral motif with some subtle shades.

Source GraphicsWall

Gradient [email protected] #694
 Grid  CC BY-SA 3.0

It’s big, it’s gradient—and it’s square.

Source Brankic1979

Floors & Block #1604
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

3D Wood #1475
 Wood  CC 0

Basket Fibers, Basket Texture, Braid Background style CC0 texture.

Source 1A-Photoshop

Symphony #1339
 Light  CC BY-SA 3.0

Enjoy this like classical music.

Source iliad

Background pattern 19 (black) #203
 Dark  CC 0

A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.

Source Firkin

Axiom Pattern #330
 Grid  CC BY-SA 3.0

Not even 1kb, but very stylish. Gray thin lines.

Source Struck Axiom

Diminishing design 5 #1725
 Blue  CC 0

Adapted from an image that was uploaded to Pixabay by Anerma.

Source Firkin

Psychedelic Geometric Background #381
 Noise  CC 0

Psychedelic Geometric Background.

Source GDJ

Shapes pattern 2 (colour 2) #2240
 Green  CC 0

A background made up of shapes.

Source Firkin

Background pattern 271 #2058
 Dark  CC 0

Remixed from a drawing in 'The Canadian horticulturist', 1892

Source Firkin

Through Pixel Dream #1228
 Yellow  CC BY-SA 3.0

A yellow tiled background... Blurriness, bokeh effect and rectangles pattern in one mix.

Source V. Hartikainen

Wavy background #2021
 Pink  CC 0

CC0 and a seamless pattern from a tile drawn in Paint.net .

Source SliverKnight

"Black Chains", Gloomy Background #1082
 Metal  CC BY-SA 3.0

A repeating gloomy background image. This one consists of a pattern of black chains layered on top of a dark textured background.

Source V. Hartikainen

Paper 1 #15
 Paper  CC BY-SA 3.0

A slightly grainy paper pattern with small horizontal and vertical strokes.

Source Atle Mo

Prismatic Geometric Tessellation Pattern 3 No Background #555
 Noise  CC 0

Prismatic Geometric Tessellation Pattern 3 No Background

Source GDJ

Floral pattern 7 (colour 3) #2289
 Pink  CC 0

Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.

Source Firkin

Winding Stripes Background Pattern #1164
 Fabric  CC BY-SA 3.0

A dark brown fabric-like background texture with seamless pattern of winding stripes.

Source V. Hartikainen

"Black Metal Grid", Seamless Background Pattern #1080
 Metal  CC BY-SA 3.0

A free seamless background pattern for use on websites.

Source V. Hartikainen

Fruit on a branch #1968
 Dark  CC 0

From a drawing in 'Line and form', Walter Crane, 1914.

Source Firkin

Soft Kill #318
 Dark  CC BY-SA 3.0

Pattern #100! A black classic knit-looking pattern.

Source Factorio.us Collective