Background pattern 226 (colour 2) #2320
Green CC 0A 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
More Textures
Mosaic tile #2481
Brown CC 0From a drawing in 'Handbook of the excursions proposed to be made by the Lincoln Diocesan Architectural Society, on the 27th and 28th of May, 1857', Edward Trollope, 1857.
Source Firkin
Prismatic Floral Background No Black@2X #476
Light CC 0Prismatic Floral Background No Black
Source GDJ
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
Old Mathematics #43
Stripes CC BY-SA 3.0This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Stacked Circles #673
Light CC BY-SA 3.0A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Exclusive Paper #23
Light CC BY-SA 3.0Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Aged Grid Paper Background #1072
Paper CC BY-SA 3.0A seamless web background with texture of aged grid paper.
Source V. Hartikainen
Dark Fish Skin@2X #1049
Dark CC BY-SA 3.0It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Prismatic Abstract Geometric Background 4 No Black #441
Dark CC 0Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Background pattern 309 (colour 4) #1863
Green CC 0Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Leafy pattern 12 (colour 2) #1761
Red CC 0From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Background pattern 220 #2360
Dark CC 0A 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
Absurdity #825
Light CC BY-SA 3.0Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
Black Wall #1267
Wall CC 0Zero CC asphalt, pavement, texture, photographed and made by me. CC0 WARNING I FOUND A SEAM ON THIS TEXTURE
Source Sojan Janso
Seamless tile 4 #1812
Red CC 0Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
Dark Wall #1253
Wall CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Background pattern 197 (variant 2) #2512
Green CC 0A version without colours blended together to give a different look.
Source Firkin
Tileable Wood #655
Wood CC BY-SA 3.0Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Tex2res2 #719
Fabric CC BY-SA 3.0Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
"Brown Stone", Seamless Web Texture #1030
Stone CC BY-SA 3.0This background texture resembles stone. It may be used as a background on web pages or on some of their html elements (header, borders, menu bar, etc.). Just modify it for your needs.
Source V. Hartikainen
Background pattern 257 #2137
Dark CC 0Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin