Inspiration Geometry #1175
 Unknow  CC BY-SA 3.0

This one is rather fun and playful. The 2X could be used at 1X too!

Source Welsley

 More Textures
Stone Granite #1292
 Stone  CC 0

ZeroCC tileabel stone granite texture, edited from pixabay. CC0

Source Sojan Janso

Paper 2 #2113
 Paper  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Triangles #127
 Dark  CC BY-SA 3.0

Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.

Source Ivan Ginev

Cells #1285
 Paper  CC 0

Zero CC tileable hard cover cells, skin like, book texture. 4K, Scanned and made by me CC0

Source Sojan Janso

Prismatic Abstract Geometric Background 4 No [email protected] #443
 Dark  CC 0

Prismatic Abstract Geometric Background 4

Source GDJ

"Seamless Bark", Website Background. #879
 Wood  CC BY-SA 3.0

This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.

Source V. Hartikainen

Floral background 19 (negative) #1831
 Dark  CC 0

Negative version of the original

Source Firkin

Background pattern 209 #2432
 Grid  CC 0

A seamless pattern with polka dots.

Source Firkin

Seamless Wood Pattern #889
 Wood  CC BY-SA 3.0

A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.

Source V. Hartikainen

Retro Circles Background 8 #435
 Dark  CC 0

Retro Circles Background 8

Source GDJ

Background pattern 24 #198
 Dark  CC 0

The starting point for this was a texture drawn with the 'Radial Colors' plug-in in Paint.net.

Source Firkin

Background pattern brown #1951
 Brown  CC 0

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

Source Firkin

Black Scales #191
 Dark  CC BY-SA 3.0

Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.

Source Alex Parker

Green Gobbler #85
 Dark  CC BY-SA 3.0

Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.

Source Simon Meek

Prismatic Abstract Geometric Background 5 #401
 Noise  CC 0

Prismatic Abstract Geometric Background 5

Source GDJ

Bark #1379
 Wall  CC 0

Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!

Source Linolafett

Stone Wall & Purple #1566
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Navy #984
 Dark  CC BY-SA 3.0

It was called Navy Blue, but I made it dark. You know, the way I like it.

Source Ethan Hamilton

Flying swan pattern #1978
 Blue  CC 0

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

Source Firkin

Prismatic Floral Background No [email protected] #476
 Light  CC 0

Prismatic Floral Background No Black

Source GDJ

Background pattern 306 (colour 6) #1878
 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

Rice Paper #[email protected] #1188
 Paper  CC BY-SA 3.0

Oh yes, it happened! A pattern in full color.

Source Atle Mo

Nistri #773
 Stripes  CC BY-SA 3.0

No idea what Nistri means, but it’s a crisp little pattern nonetheless.

Source Markus Reiter

Stone Wall & Dark #1542
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Background pattern 226 (colour 6) #2316
 Pink  CC 0

A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.

Source Firkin

Page ornament #1990
 Dark  CC 0

Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.

Source Firkin

Background pattern 315 (colour 2) #1844
 Red  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

Parquet flooring pattern (colour 3) #2425
 Pink  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

Diamond pattern 2 (colour 5) #2264
 Blue  CC 0

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

Source Firkin