P5 #1113
 Light  CC BY-SA 3.0

Number five from the same submitter, makes my job easy.

Source Dima Shiper

 More Textures
Background pattern 258 #2135
 Dark  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

Stone Wall & Dark #1521
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

[email protected] #830
 Dark  CC BY-SA 3.0

Not the Rebel alliance, but a dark textured pattern.

Source Hendrik Lammers

Prismatic Curved Diamond Pattern 8 No Background #549
 Dark  CC 0

Prismatic Curved Diamond Pattern 8 No Background

Source GDJ

Background pattern 259 (colour 4) #2131
 Green  CC 0

Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Floral tile 4 #1710
 Dark  CC 0

Derived from an image that was uploaded to Pixabay by darkmoon1968

Source Firkin

Gravel 3 Normal #1473
 Paper  CC 0

Ground style CC0 texture.

Source StruffelProductions

Silver Scales #189
 Light  CC BY-SA 3.0

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

Source Alex Parker

BO [email protected] #662
 Dark  CC BY-SA 3.0

Inspired by the B&O Play, I had to make this pattern.

Source Atle Mo

Subtle Dots #921
 Light  CC BY-SA 3.0

As simple and subtle as it gets. But sometimes that’s just what you want.

Source Designova

[email protected] #952
 Gray  CC BY-SA 3.0

A large pattern with funky shapes and form. An original. Sort of origami-ish.

Source Luuk van Baars

Diamond pattern (colour 6) #2280
 Yellow  CC 0

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

Source Firkin

White Brushed #1183
 Wall  CC BY-SA 3.0

Brushed aluminum, in a bright gray version. Lovely 2X as well.

Source Andre Schouten

Background pattern 250 (colour 4) #2168
 Blue  CC 0

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

Source Firkin

Stone Wall & Dark #1557
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Parquet flooring pattern (colour 2) #2426
 Green  CC 0

A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.

Source Firkin

60º lines #25
 Light  CC BY-SA 3.0

Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.

Source Atle Mo

Background pattern 323 (colour 4) #1809
 Green  CC 0

Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.

Source Firkin

Rough Concrete Surface #1195
 Concrete  CC BY-SA 3.0

This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.

Source V. Hartikainen

Black And White Floral Pattern Background Inverse #196
 Dark  CC 0

Black And White Floral Pattern Background Inverse

Source GDJ

Background pattern 215 (colour 2) #2370
 Blue  CC 0

A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.

Source Firkin

Grass #1286
 Unknow  CC 0

Zero CC tileable dry grass texture, photographed and made by me. CC0

Source Sojan Janso

Floral pattern 16 #1755
 Dark  CC 0

A pattern of alternating squares

Source Firkin

Medic Packaging [email protected] #377
 Light  CC BY-SA 3.0

8 by 8 pixels, and just what the title says.

Source pixilated

Subtle [email protected] #926
 Light  CC BY-SA 3.0

Super subtle indeed, a medium gray pattern with tiny dots in a grid.

Source Designova

Dark Concrete Wall #1193
 Concrete  CC BY-SA 3.0

A free repetitive background with a dark concrete wall like texture. This one may be used in dark web site designs.

Source V. Hartikainen

Flying swan pattern #1978
 Blue  CC 0

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

Source Firkin

Floral design 98 (colour) #1781
 Green  CC 0

From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.

Source Firkin

Background pattern 332 #1742
 Noise  CC 0

The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i

Source Firkin