Transparent Square Tiles@2X #299
Grid CC BY-SA 3.0The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
More Textures
Grey Washed Wall@2X #1129
Wall CC BY-SA 3.0This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Grid Me@2X #606
Grid CC BY-SA 3.0Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
Tessellation 15 #2223
Dark CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Geometric pattern 6 #1930
Dark CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Elastoplast@2X #283
Light CC BY-SA 3.0A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Background pattern 223 #2353
Red CC 0Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Zodiac sign symbol background #1927
Red CC 0Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin
Prismatic Geometric Pattern Background 2 No Black #410
Noise CC 0Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Floral background 21 #1785
Dark CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Knitted Netting@2X #604
Grid CC BY-SA 3.0A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
White Paperboard@2X #375
Fabric CC BY-SA 3.0Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Nistri #773
Stripes CC BY-SA 3.0No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
Light Aluminum@2X #305
Wall CC BY-SA 3.0Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo
Office #957
Dark CC BY-SA 3.0I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Wide Rectangles@2X #700
Wall CC BY-SA 3.0Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Prismatic Hexagonalist Pattern No Background@2X #804
Light CC 0Prismatic Hexagonalist Pattern No Background
Source GDJ
Stone Granite #1292
Stone CC 0ZeroCC tileabel stone granite texture, edited from pixabay. CC0
Source Sojan Janso
White Leather@2X #640
Fabric CC BY-SA 3.0I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
Decorative divider 290 #1817
Dark CC 0From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
Background pattern 252 (colour 6) #2157
Light CC 0Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Grunge Wall #81
Wall CC BY-SA 3.0Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf