Retro Squares Background 8 #398
 Noise  CC 0

Retro Squares Background 8

Source GDJ

 More Textures
Redox [email protected] #852
 Light  CC BY-SA 3.0

After 1 comes 2, same but different. You get the idea.

Source Hendrik Lammers

Leaves #1669
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Stone Wall & Purple #1567
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Lego background #2428
 Colorful  CC 0

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

Source Firkin

Leather 1 #13
 Light  CC BY-SA 3.0

A leather pattern with a hint of yellow.

Source Atle Mo

Wavy background #2012
 Green  CC 0

A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic

Source Firkin

Diamond pattern 2 (colour 6) #2261
 Colorful  CC 0

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

Source Firkin

Wood Pattern #370
 Wood  CC BY-SA 3.0

One of the few full-color patterns here, but this one was just too good to pass up.

Source Alexey Usoltsev

Red Gemstone Tiles #1223
 Red  CC BY-SA 3.0

This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.

Source V. Hartikainen

Leafy frame 32 #1714
 Dark  CC 0

Derived from an image that was uploaded to Pixabay by Darkmoon1968

Source Firkin

Rough Cloth #312
 Fabric  CC BY-SA 3.0

More tactile goodness. This time in the form of some rough cloth.

Source Bartosz Kaszubowski

Stone Wall & Yellow #1482
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

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

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

Source Zucx

Tactile Paving A1 #2121
 Wall  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Stone Wall & Gray #1510
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

[email protected] #734
 Wall  CC BY-SA 3.0

Medium gray pattern with small strokes to give a weave effect.

Source Catherine

Prismatic Abstract Line Art Pattern Background [email protected] #568
 Dark  CC 0

Prismatic Abstract Line Art Pattern Background 2

Source GDJ

One in a Million #1346
 Gray  CC BY-SA 3.0

Nicely executed tiling for an interesting pattern.

Source Ignasi Àvila Padró

[email protected] #134
 Light  CC BY-SA 3.0

This reminds me of Game Cube. A nice light 3D cube pattern.

Source Sander Ottens

Gray Textile Background #1168
 Fabric  CC BY-SA 3.0

A gray background pattern with a texture of textile. Suits perfectly for web design.

Source V. Hartikainen

Silver [email protected] #190
 Light  CC BY-SA 3.0

Turn your site into a dragon with this great scale pattern.

Source Alex Parker

[email protected] #896
 Light  CC BY-SA 3.0

Could remind you a bit of those squares in Super Mario Bros, yeh?

Source Jeff Wall

Floral pattern 6 (colour 4) #2458
 Fabric  CC 0

Alternative colour scheme for the original floral pattern.

Source Firkin

Paper yellowish 3 #2120
 Paper  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Prismatic Geometric Pattern Variation 2 With [email protected] #472
 Noise  CC 0

Prismatic Geometric Pattern Variation 2 With Background

Source GDJ

[email protected] #1179
 Gray  CC BY-SA 3.0

This one is super crisp at 2X. Lined paper with some dust and scratches.

Source HQvectors

Pewter & Gray #1637
 Metal  CC 0

Metal-Plain or Painted. CC0 License.

Source Unknow

Fabric pattern 3 (colour 6) #2382
 Fabric  CC 0

Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin