Zig Zag #328
 Dark  CC BY-SA 3.0

So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.

Source Dmitriy Prodchenko

 More Textures
Parket #1478
 Wood  CC 0

Parket & Wood CC0 texture.

Source Unknow

flower seamless pattern #2272
 Brown  CC 0

This is a seamless pattern which is derived from a flower petal image.

Source Yamachem

Tweed #1150
 Dark  CC BY-SA 3.0

Tweed is back in style – you heard it here first. Also, the @2X version here is great!

Source Simon Leo

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

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

Source Hugo Loning

Prismatic Dots Background 8 #515
 Noise  CC 0

Prismatic Dots Background 8

Source GDJ

Metal Pole Rusty & Light #1650
 Metal  CC 0

Metal-Rusty. CC0 License.

Source Unknow

Background pattern 334 (colour 2) #1731
 Yellow  CC 0

Derived from an image that was uploaded to Pixabay by Kaz

Source Firkin

Paper model of a tetrahedron #139
 Unknow  CC 0

Paper model of a tetrahedron. Modelo de papel de um tetraedro.

Source laobc

Floors & Block #1603
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

[email protected] #973
 Light  CC BY-SA 3.0

Super detailed 16×16 tile that forms a beautiful pattern of straws.

Source Pavel

Wood Texgen 4 #1438
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

"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

Snowflake pattern remix #156
 Dark  CC 0

The base gradient edited so now more details are rendered.

Source Lazur URH

Background pattern 3 #222
 Noise  CC 0

A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.

Source Firkin

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

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

Source Sagive SEO

Abstract Arbitrary Geometric [email protected] #498
 Noise  CC 0

Abstract Arbitrary Geometric Background derived from an image on Pixabay.

Source GDJ

Sprinkles #1185
 Unknow  CC BY-SA 3.0

Add some sprinkles to your site.

Source Rebecca Litt

Background pattern 104 #561
 Dark  CC 0

Background pattern 104

Source Firkin

Floral design #1984
 Green  CC 0

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

Source Firkin

Colorful Stripes Background #400
 Noise  CC 0

Colorful Stripes Background

Source GDJ

Light Toast #759
 Paper  CC BY-SA 3.0

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

Source Pippin Lee

White Linen #839
 Light  CC BY-SA 3.0

Dead simple but beautiful horizontal line pattern.

Source Fabian Schultz

Background pattern 328 (colour 5) #1797
 Blue  CC 0

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

Source Firkin

Planks & Roughcedar #1353
 Wood  CC 0

CC0 for Free, hope you like it.

Source Yethiel

Abstract Geometric Monochrome Pattern Prismatic No Background #385
 Noise  CC 0

Abstract Geometric Monochrome Pattern Prismatic No Background

Source GDJ

Background pattern 9 (colour) #214
 Noise  CC 0

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

Source Firkin

Gold Wall & Dark #1254
 Wall  CC 0

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

Source Sojan Janso

Background pattern 239 (colour 2) #2216
 Red  CC 0

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

Source Firkin