Black Metal Pipes #1089
 Metal  CC BY-SA 3.0

An abstract texture of black metal pipes (seamless).

Source V. Hartikainen

 More Textures
[email protected] #718
 Dark  CC BY-SA 3.0

Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.

Source Janos Koos

Diamond pattern 2 (colour 2) #2267
 Colorful  CC 0

From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Seamless wool texture #1705
 Noise  CC 0

Made from an image on Pixabay

Source Firkin

Hexagonal pattern (colour) #2378
 Yellow  CC 0

A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.

Source Firkin

shell pattern #2533
 Brown  CC 0

The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.

Source Yamachem

Starting Diamond [email protected] #138
 Light  CC 0

Simple blue and line to mix.

Source SliverKnight

[email protected] #126
 Dark  CC BY-SA 3.0

And some more testing, this time with Seamless Studio. It’s Robots FFS!

Source Seamless Studio

Leaded glass background (colour 6) #2047
 Colorful  CC 0

Seamless pattern the tile.

Source Firkin

Ribbon pattern 2 (version 2, colour 5) #2035
 Colorful  CC 0

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

Source Firkin

Arrows pattern #1722
 Noise  CC 0

Inspired by an image that was uploaded to Pixabay by geralt

Source Firkin

Background pattern 227 #2314
 Yellow  CC 0

A seamless background drawn in and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.

Source Firkin

Crisp Paper Ruffles #841
 Light  CC BY-SA 3.0

Sort of reminds me of those old house wallpapers.

Source Tish

Decorative divider 189 #2518
 Dark  CC 0

From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.

Source Firkin

White Well & Star #1700
 Wall  CC 0

Background Wall, Art Abstract, Star Well & CC0 texture.

Source Ractapopulous

Seamless Texture of Wood Planks #880
 Wood  CC BY-SA 3.0

Here's an yet another background for websites, with a seamless texture of wood planks this time.

Source V. Hartikainen

Wall #1245
 Wall  CC 0

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

Source Sojan Janso

Floors & Black #1612
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

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

Old [email protected] #632
 Wall  CC BY-SA 3.0

A bit of scratched up grayness. Always good.

Source Josh Green

Broken [email protected] #365
 Dark  CC BY-SA 3.0

Beautiful dark noise pattern with some dust and grunge.

Source Vincent Klaiber

White [email protected] #132
 Light  CC BY-SA 3.0

Not the most creative name, but it’s a good all-purpose light background.

Source Dmitry

Reticular Tissue #763
 Light  CC BY-SA 3.0

The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.

Source Anna Litvinuk

Subtle White Mini Waves #1322
 Unknow  CC BY-SA 3.0

Tiny circle waves, almost like the ocean.

Source Sagive

Crackled Cement Wall #1270
 Wall  CC 0

Zero CC tileable Crackled Cement (streaks) texture, photographed and made by me. CC0

Source Sojan Janso

Dark Brown Fabric-Like Texture #963
 Stripes  CC BY-SA 3.0

A seamless striped fabric-like texture colored in a dark reddish brown color.

Source V. Hartikainen

Polonez Pattern #334
 Gray  CC BY-SA 3.0

A car pattern?! Can it be subtle? I say yes!

Source Radosław Rzepecki

White Wall 3 #1148
 Wall  CC BY-SA 3.0

This one needs to be used in small areas; you can see it repeat.

Source Luca

Stone Wall & Green #1535
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow