Brushed Aluminum 6 #1394
 Metal  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

 More Textures
Prismatic Dots Background [email protected] #516
 Noise  CC 0

Prismatic Dots Background 8

Source GDJ

Repeating Wood Straw Background #887
 Wood  CC BY-SA 3.0

A repeating background with wood/straw like texture.

Source V. Hartikainen

Fabric pattern #2402
 Fabric  CC 0

Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Floral design #1984
 Green  CC 0

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

Source Firkin

Subtle Striped Brown Background Pattern #940
 Stripes  CC BY-SA 3.0

Here's a brown background pattern with subtle stripes. I hope you'll like the color. If not, feel free to change it using an image editor, if you know how of course. Personally, I'm using GIMP to create these backgrounds.

Source V. Hartikainen

Mix & Red Pattern #1640
 Metal  CC 0

Metal-Plain or Painted. CC0 License.

Source Unknow

Dark Tile-able Grunge Texture #1123
 Grunge  CC BY-SA 3.0

Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.

Source V. Hartikainen

geometrical pattern 01 #2463
 Wall  CC 0

This is a geometrical seamless pattern.

Source Yamachem

Background pattern 298 #1899
 Dark  CC 0

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

Source Firkin

Diagonal Striped Brick #679
 Stripes  CC BY-SA 3.0

Might not be super subtle, but quite original in its form.

Source Alex Smith

Tactile Paving A1 #2121
 Wall  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Asfault 4 #1383
 Dark  CC 0

Gamedev - Asphalt textures. CC0 License.

Source Davit Masia

Lyonnette #761
 Gray  CC BY-SA 3.0

Small crosses with round edges. Quite cute.

Source Tish

Colorful Floral Background 3 No [email protected] #486
 Light  CC 0

Colorful Floral Background 3 No Black

Source GDJ

Video Game Website Background #1327
 Green  CC BY-SA 3.0

This background pattern has futuristic look. So, maybe it could be used on websites or blogs dedicated to video games?!

Source V. Hartikainen

Rubber [email protected] #102
 Dark  CC BY-SA 3.0

A very slick dark rubber grip pattern, sort of like the grip on a camera.

Source Sinisha

Concretia 3 #1410
 Gray  CC 0

Gamedev - Concrete Textures. CC0 License.

Source Davit Masia

Pool [email protected] #176
 Wall  CC BY-SA 3.0

This makes me wanna shoot some pool! Sweet green pool table pattern.

Source Caveman

Bright Multicolored Floral [email protected] #560
 Noise  CC 0

Bright Multicolored Floral Background by Karen Arnold from PDP.

Source GDJ

Prismatic Geometric Pattern Background 2 No [email protected] #784
 Noise  CC 0

Prismatic Geometric Pattern Background 2 No Black

Source GDJ

White [email protected] #1184
 Wall  CC BY-SA 3.0

Brushed aluminum, in a bright gray version. Lovely 2X as well.

Source Andre Schouten

Prismatic Curved Diamond Pattern 4 No [email protected] #542
 Diamond  CC 0

Prismatic Curved Diamond Pattern 4 No Background

Source GDJ

Floral pattern 15 #1753
 Dark  CC 0

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

Source Firkin

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

Prismatic Curved Diamond Pattern No [email protected] #537
 Diamond  CC 0

Prismatic Curved Diamond Pattern No Background

Source GDJ

[email protected] #826
 Light  CC BY-SA 3.0

Bit of a strange name on this one, but still nice. Tiny gray square things.

Source Carlos Valdez

Quilt #651
 Light  CC BY-SA 3.0

Not sure what this is, but it looks good!

Source Josh Green

"Dark Brick Wall", Background Pattern #1024
 Stone  CC BY-SA 3.0

Like the name suggests, this background image consists of a pattern of dark bricks. It may be an option for you, if you are looking for something that looks like a brick wall for use as a background on web pages. It's not a masterpiece, but looks pretty nice when is tiled.

Source V. Hartikainen