Diamond pattern (colour 3) #2283
Green CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
More Textures
Background pattern 306 (colour 3) #1880
Colorful CC 0Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Fabric pattern 2 (colour 6) #2391
Fabric CC 0Not 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
Noisy Net #976
Dark CC BY-SA 3.0Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle
Decorative divider #1986
Dark CC 0Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
White Paperboard@2X #375
Fabric CC BY-SA 3.0Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Little Triangles@2X #688
Light CC BY-SA 3.0The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Debut Dark #1014
Dark CC BY-SA 3.0Same classic 45-degree pattern, dark version.
Source Luke McDonald
Skin Side Up #847
Light CC BY-SA 3.0White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Background pattern 215 (colour 2) #2370
Blue CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Prismatic Polyskelion Pattern No Background@2X #800
Light CC 0Prismatic Polyskelion Pattern No Background
Source GDJ
Seamless Cardboard Texture #1212
Cardboard CC BY-SA 3.0A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
Rough Cloth@2X #313
Fabric CC BY-SA 3.0More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
"Glossy Pink Fur", Pink Background Pattern #1235
Pink CC BY-SA 3.0Here's a quite bright pink background pattern for use on websites. It doesn't look like a real fur, but it definitely resembles one.
Source V. Hartikainen
Eight Horns #1325
Light CC BY-SA 3.0Looks like an old rug or a computer chip.
Source Patutin Sergey
Background pattern 309 (colour 4) #1863
Green CC 0Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Background pattern 339 #1709
Dark CC 0The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Gold Wall & Black #1251
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Lined Paper #362
Stripes CC BY-SA 3.0The classic notebook paper with horizontal stripes.
Source Are Sundnes
Page ornament 21 #2361
Dark CC 0From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Dark Wall #1253
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
White Wall 3@2X #1149
Wall CC BY-SA 3.0This one needs to be used in small areas; you can see it repeat.
Source Luca