Pixel [email protected] #1155
 Unknow  CC BY-SA 3.0

Clean and crisp lines all over the place. Wrap it up with this one.

Source Dax Kieran

 More Textures
Diminishing design 5 #1725
 Blue  CC 0

Adapted from an image that was uploaded to Pixabay by Anerma.

Source Firkin

Wall #1246
 Wall  CC 0

Zerro CC tillable texture of stones photographed and made by me. CC0

Source Sojan Janso

Decorative divider 240 #2086
 Dark  CC 0

From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.

Source Firkin

Light Gray Fabric Pattern With Faded Stripes #965
 Stripes  CC BY-SA 3.0

A light gray fabric pattern with faded vertical stripes.

Source V. Hartikainen

Tex2res3 #723
 Fabric  CC BY-SA 3.0

Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.

Source Janos Koos

Background pattern 240 #2209
 Dark  CC 0

Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.

Source Firkin

Brushed Alum #67
 Light  CC BY-SA 3.0

A light brushed aluminum pattern for your pleasure.

Source Tim Ward

[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

Ecailles #1042
 Light  CC BY-SA 3.0

Almost like little fish shells, or dragon skin.

Source Graphiste

Tessellation 15 #2223
 Dark  CC 0

The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.

Source Firkin

Crackled Cement Wall #1270
 Wall  CC 0

Zero CC tileable Crackled Cement (streaks) texture, photographed and made by me. CC0

Source Sojan Janso

Wood Old Panels #1435
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Background pattern 220 #2360
 Dark  CC 0

A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Derived from a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.

Source Firkin

Fruit decorative divider #1911
 Colorful  CC 0

Vector version of a png that was uploaded to Pixabay by pencilparker

Source Firkin

Well #1261
 Wall  CC 0

Zerro CC tillable texture of stones photographed and made by me. CC0

Source Sojan Janso

Pattern & Mix #1620
 Wall  CC 0

Fence. CC0 License.

Source Unknow

Foggy [email protected] #580
 Light  CC BY-SA 3.0

Hey, you never know when you’ll need a bird pattern, right?

Source Pete Fecteau

Checkered [email protected] #323
 Grid  CC BY-SA 3.0

Simple gray checkered lines, in light tones.

Source Radosław Rzepecki

Background pattern yellow #1999
 Yellow  CC 0

Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i

Source Firkin

Stone Wall & Purple #1565
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

[email protected] #954
 Dark  CC BY-SA 3.0

Hexagonal dark 3D pattern. What more can you ask for?

Source Norbert Levajsics

Background pattern pink #1954
 Pink  CC 0

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

Source Firkin

Black Mamba #57
 Dark  CC BY-SA 3.0

The name alone is awesome, but so is this sweet dark pattern.

Source Federica Pelzel

Page ornament #1987
 Dark  CC 0

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

Source Firkin

Floral background 21 #1785
 Dark  CC 0

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

Source Firkin