Brushed Aluminum 1 #1389
 Metal  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

 More Textures
[email protected] #118
 Grid  CC BY-SA 3.0

Dark squares with some virus-looking dots in the grid.

Source Hugo Loning

Gray Textile Background #1168
 Fabric  CC BY-SA 3.0

A gray background pattern with a texture of textile. Suits perfectly for web design.

Source V. Hartikainen

Stamped Dots On Metal #1083
 Metal  CC BY-SA 3.0

A dark metallic background with a pattern of stamped dots. Here's a dark "metallic" background pattern for you.

Source V. Hartikainen

Leaftrim #1683
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Stone Wall & Yellow #1528
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Asfault 4 #1383
 Dark  CC 0

Gamedev - Asphalt textures. CC0 License.

Source Davit Masia

Prismatic Chevrons Pattern 5 With [email protected] #470
 Dark  CC 0

Prismatic Chevrons Pattern 5 With Background

Source GDJ

mesh 01 #2276
 Light  CC 0

The image depicts a mesh .I made it as template.

Source Yamachem

Arches #715
 Light  CC BY-SA 3.0

One more in the line of patterns inspired by Japanese/Asian styles. Smooth.

Source Kim Ruddock

Gray [email protected] #914
 Light  CC BY-SA 3.0

Some more diagonal lines and noise, because you know you want it.

Source Atle Mo

"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

Cross pattern #2333
 Dark  CC 0

A seamless pattern formed from cross 4. To get the original tile select the rectangle in Inkscape and use shift-alt-i.

Source Firkin

Handmade Paper #37
 Paper  CC BY-SA 3.0

White handmade paper pattern with small bumps.

Source Marquis

Starting Diamond [email protected] #138
 Light  CC 0

Simple blue and line to mix.

Source SliverKnight

Abstract tulip (wood) #1892
 Wood  CC 0

The original tulip given a wooden texture.

Source Firkin

Wavy background #2022
 Blue  CC 0

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

Source SliverKnight

Background pattern 272 (colour 3) #2055
 Red  CC 0

A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Light Toast #759
 Paper  CC BY-SA 3.0

Has nothing to do with toast, but it’s nice and subtle.

Source Pippin Lee

Metal & Gray Stone #1656
 Metal  CC 0

Metal-Rusty. CC0 License.

Source Unknow

Brushed Aluminum #1388
 Metal  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

Background pattern 323 (colour 5) #1808
 Noise  CC 0

Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.

Source Firkin

Prismatic Abstract Geometric Background 2 No Black #445
 Noise  CC 0

Prismatic Abstract Geometric Background 2 No Black

Source GDJ

Floral flourish #1816
 Dark  CC 0

Derived from a JPG that was uploaded to Pixabay by ractapopulous

Source Firkin

Stone Wall & Gray #1500
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Background pattern #1942
 Brown  CC 0

Formed by distorting an image on Pixabay that was uploaded by gustavorezende. To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.

Source Firkin

Vertical [email protected] #598
 Dark  CC BY-SA 3.0

You just can’t get enough of the fabric patterns, so here is one more for your collection.

Source Krisp Designs

Background pattern 254 (colour) #2143
 Colorful  CC 0

To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.

Source Firkin

cloth texture #2454
 Fabric  CC 0

This is a light-brown cloth texture.

Source Yamachem

Plain & Wood #1356
 Wood  CC 0

CC0 for Free, hope you like it.

Source Yethiel