[email protected] #357
 Light  CC BY-SA 3.0

It’s a hole, in a pattern. On your website. Dig it!

Source Josh Green

 More Textures
3D Wood #1475
 Wood  CC 0

Basket Fibers, Basket Texture, Braid Background style CC0 texture.

Source 1A-Photoshop

Background pattern 15 #201
 Dark  CC 0

A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.

Source Firkin

Background pattern 315 (colour 4) #1842
 Colorful  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

Cardboard #278
 Paper  CC BY-SA 3.0

A good starting point for a cardboard pattern. This would work well in a variety of colors.

Source Atle Mo

Grey Jean #1036
 Gray  CC BY-SA 3.0

This is one good-looking pattern. Grab it!

Source Omur Uluask

Zig [email protected] #329
 Dark  CC BY-SA 3.0

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

Source Dmitriy Prodchenko

Dark Fish [email protected] #1049
 Dark  CC BY-SA 3.0

It almost looks a bit blurry, but then again, so are fishes.

Source Petr Šulc

Background pattern 234 (colour 4) #2256
 Pink  CC 0

Drawn in Paint.net and vectorised in Vector Magic.

Source Firkin

Floral design 87 #1886
 Dark  CC 0

From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.

Source Firkin

Prismatic Abstract Geometric Background 4 No [email protected]@2X #444
 Dark  CC 0

Prismatic Abstract Geometric Background 4

Source GDJ

Wood 11 #1456
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Gray [email protected] #18
 Dark  CC BY-SA 3.0

A dark gray, sandy pattern with small light dots, and some angled strokes.

Source Atle Mo

Seamless Paper Texture (Pale Yellow) #1217
 Yellow  CC BY-SA 3.0

A seamless paper background texture colored in pale yellow. This seamless texture is ideal for those who need a yellow background image for their website. The texture resembles paper.

Source V. Hartikainen

Decorative divider 212 #2343
 Dark  CC 0

Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.

Source Firkin

Prismatic Basic Pattern 2 No Background #447
 Noise  CC 0

Prismatic Basic Pattern 2 No Background

Source GDJ

Metal Pole Rusty & White #1652
 Metal  CC 0

Metal-Rusty. CC0 License.

Source Unknow

Ground Cracked 2 #1280
 Wall  CC 0

Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0

Source Sojan Janso

Swirl #947
 Light  CC BY-SA 3.0

The name tells you it has curves. Oh yes, it does!

Source Peter Chon

Background pattern 329 #1769
 Dark  CC 0

A pattern formed entirely from squares

Source Firkin

Prismatic Dots Background #501
 Noise  CC 0

Prismatic Dots Background

Source GDJ

Lego background #266
 Noise  CC 0

Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.

Source Firkin

Dark [email protected] #307
 Dark  CC BY-SA 3.0

People seem to enjoy dark patterns, so here is one with some circles.

Source Atle Mo

Red & Black Well #1260
 Wall  CC 0

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

Source Sojan Janso

Always [email protected] #54
 Dark  CC BY-SA 3.0

Crossing lines with a subtle emboss effect on a dark background.

Source Stefan Aleksić

Spiral background 2 (colour 2) #2244
 Colorful  CC 0

Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.

Source Firkin

Fabric 1 #9
 Light  CC BY-SA 3.0

Semi-light fabric pattern made out of random pixels in shades of gray.

Source Atle Mo

P4 #1111
 Light  CC BY-SA 3.0

I skipped number 3, because it wasn’t all that great. Sorry.

Source Dima Shiper

Colorful Stripes Background #400
 Noise  CC 0

Colorful Stripes Background

Source GDJ

Colourful background 39 #1782
 Noise  CC 0

A colourful chequerboard-type pattern.

Source Firkin

Light Note Paper #942
 Stripes  CC BY-SA 3.0

Here's an yet another seamless note paper texture for use as a background on websites.

Source V. Hartikainen