Escheresque #777
 Light  CC BY-SA 3.0

Cubes as far as your eyes can see. You know, because they tile.

Source Jan Meeus

 More Textures
Absurdity #825
 Light  CC BY-SA 3.0

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

Source Carlos Valdez

Stressed [email protected] #987
 Dark  CC BY-SA 3.0

We have some linen patterns here, but none that are stressed. Until now.

Source Jordan Pittman

Background pattern 320 #1830
 Pink  CC 0

Formed by distorting a JPG from PublicDomainPictures

Source Firkin

Wood Texture 4 #1442
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Tactile Paving A2 #2122
 Wall  CC 0

CC0 textures, backgrounds.

Source SliverKnight

AZ Subtle #990
 Light  CC BY-SA 3.0

The A – Z of Subtle? Up to you.

Source Anli

Background pattern 306 (colour 2) #1881
 Colorful  CC 0

Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.

Source Firkin

Retro [email protected] #894
 Gray  CC BY-SA 3.0

A slightly more textured pattern, medium gray. A bit like a potato sack?

Source Bilal Ketab

Diamond Metal Plate #1397
 Metal  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

Light Grey Floral Motif #344
 Wall  CC BY-SA 3.0

Lovely light gray floral motif with some subtle shades.

Source GraphicsWall

Light & Boards #1297
 Wood  CC 0

ZeroCC tileable wood boards texture, photographed and made by me. CC0

Source Sojan Janso

Decorative divider 285 #1847
 Dark  CC 0

From a drawing in 'In an Enchanted Island', William Mallock, 1892.

Source Firkin

Gloomy Stripes #994
 Stripes  CC BY-SA 3.0

A dark striped seamless pattern suitable for use as a background on websites.

Source V. Hartikainen

Cream Dust #980
 Light  CC BY-SA 3.0

I love cream! 50x50px and lovely in all the good ways.

Source Thomas Myrman

Background pattern 204 #2476
 Red  CC 0

Drawn originally with Paint.net.

Source Firkin

Debut Dark #1014
 Dark  CC BY-SA 3.0

Same classic 45-degree pattern, dark version.

Source Luke McDonald

Background pattern #1942
 Brown  CC 0

Formed by distorting an image on Pixabay that was uploaded by gustavorezende. To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.

Source Firkin

Wood Stripe Pattern #999
 Stripes  CC BY-SA 3.0

A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.

Source V. Hartikainen

Paper 2 #21
 Paper  CC BY-SA 3.0

New paper pattern with a slightly organic feel to it, using some thin threads.

Source Atle Mo

Purty Wood #677
 Wall  CC BY-SA 3.0

You know you love wood patterns, so here’s one more.

Source Richard Tabor

Background pattern 312 (colour 2) #1859
 Red  CC 0

Alternative colour scheme

Source Firkin

Embossed [email protected] #732
 Paper  CC BY-SA 3.0

One more from Badhon, sharp horizontal lines making an embossed paper feeling.

Source Badhon Ebrahim

Dungeons & Flagons 6 #1422
 Diamond  CC 0

Gamedev - Floors Textures. CC0 License.

Source Davit Masia

Seamless Stone Background #1055
 Stone  CC BY-SA 3.0

A repeating background with seamless texture of stone. There haven't been any stone-like backgrounds for a while, so I have decided to create one more. The rest can be found in the appropriate category.

Source V. Hartikainen

Olive Green Web Background Image #1335
 Green  CC BY-SA 3.0

Seamless Olive Green Web Background Image

Source V. Hartikainen

Background pattern 258 (colour) #2134
 Red  CC 0

Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.

Source Firkin

Random Grey Variations #69
 Stripes  CC BY-SA 3.0

Stefan is hard at work, this time with a funky pattern of squares.

Source Stefan Aleksić

Stacked [email protected] #674
 Light  CC BY-SA 3.0

A simple circle. That’s all it takes. This one is even transparent, for those who like that.

Source Saqib