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

 More Textures
Grey Washed [email protected] #1129
 Wall  CC BY-SA 3.0

This is a semi-dark pattern, sort of linen-y.

Source Sagive SEO

Squared Metal #1207
 Gray  CC BY-SA 3.0

Metal. Squared style.

Source doot0

Background pattern 269 #2062
 Dark  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

Noise [email protected] #898
 Paper  CC BY-SA 3.0

Lovely pattern with some good-looking non-random noise lines.

Source Zucx

Fruit on a branch #1968
 Dark  CC 0

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

Source Firkin

Tessellation 16 (colour 5) #2211
 Yellow  CC 0

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

Source Firkin

Stone Wall & Blue #1525
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Vintage [email protected] #654
 Wall  CC BY-SA 3.0

Lovely pattern with splattered vintage speckles.

Source David Pomfret

Floral pattern 18 #1716
 Dark  CC 0

A pattern formed from repeated instances of corner decoration 8. To get the basic tile select the rectangle in Inkscape and use shift+alt+i

Source Firkin

Background pattern 213 #2412
 Dark  CC 0

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

Source Firkin

[email protected] #856
 Light  CC BY-SA 3.0

You can never get enough of these tiny pixel patterns with sharp lines.

Source Designova

Dark Brick Wall #135
 Wall  CC BY-SA 3.0

Black brick wall pattern. Brick your site up!

Source Alex Parker

Prismatic Snowflakes Pattern 3 No [email protected] #781
 Light  CC 0

Prismatic Snowflakes Pattern 3 No Background

Source GDJ

Tex2res2 #719
 Fabric  CC BY-SA 3.0

Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.

Source Janos Koos

Colorful Floral Background No [email protected] #482
 Light  CC 0

Colorful Floral Background No Black

Source GDJ

Dark [email protected] #122
 Dark  CC BY-SA 3.0

Small dots with minor circles spread across to form a nice mosaic.

Source John Burks

Colourful background #2009
 Colorful  CC 0

Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic

Source Firkin

More Rough Wood 7 #1433
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Floral background 16 (colour) #1913
 Colorful  CC 0

Floral background 16 (colour)

Source Firkin

Tactile Paving A1 #2121
 Wall  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Background pattern 8 (black) #209
 Dark  CC 0

Black version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net

Source Firkin

Triangles #127
 Dark  CC BY-SA 3.0

Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.

Source Ivan Ginev

[email protected] #985
 Dark  CC BY-SA 3.0

It was called Navy Blue, but I made it dark. You know, the way I like it.

Source Ethan Hamilton

Metal Pole Rusty & Yellow #1651
 Metal  CC 0

Metal-Rusty. CC0 License.

Source Unknow

Satin [email protected] #1045
 Light  CC BY-SA 3.0

Super simple but very nice indeed. Gray with vertical stripes.

Source Merrin Macleod

Black Wall #1262
 Wall  CC 0

Zerro CC tillable texture of stones photographed and made by me. CC0

Source Sojan Janso

Transparent Square [email protected] #299
 Grid  CC BY-SA 3.0

The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.

Source Nathan Spady

Snowflake remix #155
 Dark  CC 0

A bit simplified version. Although it could be edited out to be simpler. Anyway, this time the tiling is converted to a pattern fill -which is using clipping for the tile's edges.

Source Lazur URH

fawn spot pattern #2472
 Dark  CC 0

The image depicts a Japanese Edo pattern called "kanoko or 鹿の子" meaning "fawn" which has a fur with small white spots.

Source Yamachem

Grunge [email protected] #82
 Wall  CC BY-SA 3.0

Light gray grunge wall with a nice texture overlay.

Source Adam Anlauf