Tessellation 15 (colour) #2222
Blue CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
More Textures
Lined Paper #1034
Light CC BY-SA 3.0I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Prismatic Geometric Pattern Background 2 No Black@2X #784
Noise CC 0Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Shapes pattern #2409
Brown CC 0A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
fishneｔ 01 #2475
Grid CC 0The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
Prismatic Abstract Geometric Background 4 No Black@2X #442
Dark CC 0Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Abstract Tiled Background Extended 6 #517
Noise CC 0Abstract Tiled Background Extended 6
Source GDJ
Floral design 100 (version 2, colour) #1772
Green CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Floral design 94 #1792
Yellow CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Background pattern 269 #2062
Dark CC 0A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Background pattern 214 (colour 4) #2373
Yellow CC 0A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Blizzard #663
Paper CC BY-SA 3.0This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Black Mamba #57
Dark CC BY-SA 3.0The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Textured Grid Paper #1316
Orange CC BY-SA 3.0A tile-able background for websites with paper-like texture and a grid pattern layered on top of it.
Source V. Hartikainen
Black And White Floral Pattern Background Inverse #197
Dark CC 0Black And White Floral Pattern Background from PDP.
Source GDJ
Exclusive Paper@2X #24
Light CC BY-SA 3.0Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Batthern@2X #325
Grid CC BY-SA 3.0Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Japanese family crest called chidori 02 #2440
Brown CC 0The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
Dimension #1173
Light CC BY-SA 3.0Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
Floral background 17 (colour 3) #1849
Blue CC 0Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Dark Brick Wall@2X #136
Wall CC BY-SA 3.0Black brick wall pattern. Brick your site up!
Source Alex Parker
Triangles@2X #744
Grid CC BY-SA 3.0Sharp but soft triangles in light shades of gray.
Source Pixeden
Sine wave background #1735
Dark CC 0The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin