Rough Concrete Surface #1195
Concrete CC BY-SA 3.0This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
More Textures
Wavy Green Vertical Stripes #936
Stripes CC BY-SA 3.0A background pattern with wavy green vertical stripes. This one has green stripes on a white background. Download if you like it.
Source V. Hartikainen
Dark Dot #647
Dark CC BY-SA 3.0That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Background pattern 105@2X #564
Dark CC 0A seamless pattern formed from background pattern 102
Source Firkin
Background pattern 235 (colour 2) #2254
Blue CC 0To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Fabric (Plaid)@2X #592
Fabric CC BY-SA 3.0You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Background pattern 260 #2094
Orange CC 0Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
Background pattern 251 (colour 3) #2165
Blue CC 0To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background pattern 246 (colour 4) #2183
Green CC 0This was formed by distorting an image of a background on Pixabay.
Source Firkin
Batthern #324
Grid CC BY-SA 3.0Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Grunge Wall #81
Wall CC BY-SA 3.0Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Tessellation 10 (variant 2) #2544
Grid CC 0An alternative colour scheme to the original seamless pattern.
Source Firkin
fishnet 02 #2473
Dark CC 0This 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
Stripey ball pattern #1997
Yellow CC 0To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Tile-able Black Paper Background #1076
Paper CC BY-SA 3.0A black tile-able background with paper-like texture.
Source V. Hartikainen
Geometric pattern #2002
Dark CC 0A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Background pattern brown #1951
Brown CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background pattern yellow #2025
Yellow CC 0Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Background pattern 224 (colour 2) #2341
Colorful CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Dark Circles@2X #307
Dark CC BY-SA 3.0People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
Background pattern 255 (colour) #2141
Brown CC 0Colour version of the original pattern.
Source Firkin
Background pattern 250 (colour 4) #2168
Blue CC 0To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Floral background #1981
Dark CC 0Remixed from a drawing in 'Line and form", Walter Crane, 1914.
Source Firkin
Background pattern 215 #2371
Brown CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin