Zig-zag pattern 4 #2415
Grid CC 0A seamless pattern based on a rectangular tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
More Textures
Dark Tile-able Grunge Texture #1123
Grunge CC BY-SA 3.0Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
Prismatic Groovy Concentric Background 4 #461
Noise CC 0Prismatic Groovy Concentric Background 4
Source GDJ
"Brown Stone Wall" #1026
Stone CC BY-SA 3.0A free seamless background texture that looks like a brown stone wall.
Source V. Hartikainen
Diamond pattern 2 (colour 6) #2261
Colorful CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Paper 1 #15
Paper CC BY-SA 3.0A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Rice Paper 2 #340
Paper CC BY-SA 3.0One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Orange-red Pattern #995
Stripes CC BY-SA 3.0Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
P5@2X #1114
Light CC BY-SA 3.0Number five from the same submitter, makes my job easy.
Source Dima Shiper
Decorative divider 187 #2522
Dark CC 0From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Wood Pattern@2X #371
Wood CC BY-SA 3.0One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
Cork Panel Background Texture #869
Wood CC BY-SA 3.0This one looks like a cork panel. Feel free to use it as a tiled background on your blog or website.
Source V. Hartikainen
Glass block pattern #2477
Brown CC 0Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin
Background Patterns Lazuli #253
Fabric CC 0If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Decorative divider 234 #2093
Dark CC 0Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
Background pattern 245 (colour 4) #2189
Yellow CC 0This was formed by distorting an image of a background on Pixabay.
Source Firkin
Rough Diagonal #691
Fabric CC BY-SA 3.0The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
shell pattern #2533
Brown CC 0The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
Background pattern 201 (colour) #2497
Grid CC 0A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Background pattern #1977
Dark CC 0Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Blue & Dark Well #1703
Wall CC 0Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Tessellation 15 (colour 3) #2220
Red CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Subtle Carbon #949
Dark CC BY-SA 3.0There are many carbon patterns, but this one is tiny.
Source Designova
Background pattern 261 #2076
Dark CC 0Inspired by a pattern found in 'A General History of Hampshire, or the County of Southampton, including the Isle of Wight', Bernard Woodwood, 1861
Source Firkin
Leafy pattern black #1972
Dark CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Groovepaper #577
Paper CC BY-SA 3.0With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac