Classy Fabric #611
 Dark  CC BY-SA 3.0

This is lovely, just the right amount of subtle noise, lines and textures.

Source Richard Tabor

 More Textures
Gray Floral #755
 Gray  CC BY-SA 3.0

Floral patterns might not be the hottest thing right now, but you never know when you need it!

Source Lauren

Subtle Website Background #1022
 Stone  CC BY-SA 3.0

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

Source V. Hartikainen

Grunge For Surfaces 4 #1401
 Dark  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

Wine Cork #33
 Light  CC BY-SA 3.0

Wine cork texture based off a scanned corkboard.

Source Atle Mo

Escheresque [email protected] #1065
 Dark  CC BY-SA 3.0

A comeback for you: the popular Escheresque, now in black.

Source Patten

Heart and rose pattern #2419
 Pink  CC 0

Seamless pattern formed from a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.

Source Firkin

Wheat #1695
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Frozen Surface With Diagonal Stripes #912
 Stripes  CC BY-SA 3.0

This light background pattern has a texture of "frozen" surface with diagonal stripes. Here's an yet another addition to the collection of free website backgrounds.

Source V. Hartikainen

Background pattern 215 (colour 3) #2369
 Pink  CC 0

A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.

Source Firkin

Light [email protected] #696
 Grid  CC BY-SA 3.0

Submitted as a black pattern, I made it light and a few steps more subtle.

Source Andy

Floors & Black #1610
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

Concretia 4 #1411
 Dark  CC 0

Gamedev - Concrete Textures. CC0 License.

Source Davit Masia

Silver [email protected] #190
 Light  CC BY-SA 3.0

Turn your site into a dragon with this great scale pattern.

Source Alex Parker

Floral background 17 (colour 3) #1849
 Blue  CC 0

Remixed from a JPG that was uploaded to Pixabay by theasad121

Source Firkin

Flowery branch #1891
 Colorful  CC 0

Cut from a jpg on Pixabay and vectorized

Source Firkin

Diagonales Decalé[email protected] #1019
 Light  CC BY-SA 3.0

Sounds French. Some 3D square diagonals, that’s all you need to know.

Source Graphiste

lotus crane #2499
 Concrete  CC 0

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

Dark Metallic Background Pattern #1088
 Metal  CC BY-SA 3.0

A dark background pattern/texture of a dimpled metal plate.

Source V. Hartikainen

Axiom [email protected] #331
 Grid  CC BY-SA 3.0

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

Source Struck Axiom

Zig-zag pattern #2418
 Grid  CC 0

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

[email protected] #722
 Fabric  CC BY-SA 3.0

Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.

Source Janos Koos

Wine glass background #2054
 Pink  CC 0

Remixed from an image on Pixabay uploaded by Prawny

Source Firkin

Leafy pattern 12 #1764
 Dark  CC 0

From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.

Source Firkin

Background pattern 310 #1862
 Red  CC 0

Based on an image that was uploaded to Pixabay by devanath

Source Firkin

Concretia 5 #1412
 Gray  CC 0

Gamedev - Concrete Textures. CC0 License.

Source Davit Masia

Colourful background 32 #2173
 Colorful  CC 0

Colourful background achieved with gradient fills.

Source Firkin

Background pattern 315 (colour 5) #1841
 Yellow  CC 0

The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i

Source Firkin

Wood Chips 3 #2101
 Unknow  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Background pattern 255 #2142
 Dark  CC 0

Colour version of the original pattern.

Source Firkin