Solid #845
 Gray  CC BY-SA 3.0

A mid-tone gray pattern with some cement looking texture.

Source Hendrik Lammers

 More Textures
[email protected] #72
 Light  CC BY-SA 3.0

This one could be the shirt of a golf player. Angled lines in different thicknesses.

Source Olivier Pineda

Interlocking pattern 3 (colour 2) #2405
 Grid  CC 0

A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.

Source Firkin

Background pattern 243 #2197
 Colorful  CC 0

Random colour tile.

Source Firkin

Stone Wall & Purple #1565
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Floors & Block #1604
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

3px [email protected] #343
 Dark  CC BY-SA 3.0

Tiny dark square tiles with varied color tones.

Source Gre3g

Stone Wall & Gray #1563
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Background2 #259
 Wall  CC 0

rug texture background

Source Jilllio

Configurable Graph [email protected] #816
 Stripes  CC 0

Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.

Source JayNick

Iron Rusted & Dark Red #1659
 Metal  CC 0

Metal-Rusty. CC0 License.

Source Unknow

Plain & Pine Green #1359
 Wood  CC 0

CC0 for Free, hope you like it.

Source Yethiel

Transparent Square [email protected] #299
 Grid  CC BY-SA 3.0

The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.

Source Nathan Spady

Floral pattern 7 #2291
 Pink  CC 0

Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.

Source Firkin

Pixel bird pattern #1846
 Red  CC 0

Remixed from an SVG by Devanath found on Pixabay

Source Firkin

Prismatic Floral Background #473
 Dark  CC 0

Prismatic Floral Background

Source GDJ

Soft Circle Scales #113
 Light  CC BY-SA 3.0

Japanese looking fish scale pattern.

Source Ian Soper

Decorative divider 211 #2362
 Dark  CC 0

From a drawing in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.

Source Firkin

Decorative divider 272 (colour) #1926
 Yellow  CC 0

Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.

Source Firkin

fishnet 02 #2473
 Dark  CC 0

This is a more minute version of "fishnet 01".The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.

Source Yamachem

Diagonal Noise #181
 Fabric  CC BY-SA 3.0

A simple but elegant classic. Every collection needs one of these.

Source Christopher Burton

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

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

Source Hendrik Lammers

Fabric pattern (colour 6) #2397
 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

Brick [email protected] #1275
 Wall  CC 0

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

Source Sojan Janso

Stone Wall & Yellow #1515
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Background pattern 208 #2465
 Grid  CC 0

A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.

Source Firkin

Background pattern 26 (black) #199
 Dark  CC 0

Pattern formed from simple shapes. Black version.

Source Firkin

[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