Background pattern 306 (colour 6) #1878
Colorful CC 0Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
More Textures
Pattern #1476
Paper CC 0Pattern Background, Texture, Photoshop Structure style CC0 texture.
Source Darkmoon1968
Background pattern 236 #2249
Dark CC 0Seamless pattern the basic tile for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Robots@2X #126
Dark CC BY-SA 3.0And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Dark Leather #129
Dark CC BY-SA 3.0You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
Background pattern 265 #2081
Dark CC 0Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Groovy Concentric Background 2 No Black@2X #456
Noise CC 0Prismatic Groovy Concentric Background 2 No Black
Source GDJ
Cuckoo Footprint #1321
Unknow CC BY-SA 3.0A cute x, if you need that sort of thing.
Source Juan Scrocchi
"Dirty Paper", Seamless Background #1059
Paper CC BY-SA 3.0A seamless background colored in pale orange. It has a paper like texture with diagonal grid pattern.
Source V. Hartikainen
Floral background 2 #2471
Yellow CC 0Background formed from the original with an emboss effect.
Source Firkin
Project Papper@2X #120
Paper CC BY-SA 3.0Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Background Patterns - Emerald #252
Fabric CC 0If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Wine glass background #2054
Pink CC 0Remixed from an image on Pixabay uploaded by Prawny
Source Firkin
Rice Paper #338
Paper CC BY-SA 3.0Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
Small Crackle Bright #352
Light CC BY-SA 3.0Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Pyramid@2X #896
Light CC BY-SA 3.0Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Background pattern 271 #2058
Dark CC 0Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
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
Dark Brick Pattern #1032
Stone CC BY-SA 3.0A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
Nistri #773
Stripes CC BY-SA 3.0No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
White Plaster #368
Wall CC BY-SA 3.0Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
"Wide Stripe Wallpaper", Seamless Pattern #1227
Yellow CC BY-SA 3.0A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen