Triangular #1156
Gray CC BY-SA 3.0Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
More Textures
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
Bark #1291
Wall CC 0Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Background pattern 258 #2135
Dark CC 0Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Orange-red Pattern #995
Stripes CC BY-SA 3.0Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
Textured Paper Background (Vanilla Yellow) #1219
Yellow CC BY-SA 3.0Here's a new paper-like background for free use on personal and commercial projects (this applies to all background patterns here).
Source V. Hartikainen
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
Felt #300
Wall CC BY-SA 3.0Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
Dark Matter #601
Dark CC BY-SA 3.0The name is totally random, but hey, it sounds good.
Source Atle Mo
Overlapped wood 2 #2568
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Vintage pattern #1959
Grid CC 0Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
fishnet 02 #2473
Dark CC 0This is a more minute version of "fishnet 01".The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
Background pattern 303 #1888
Unknow CC 0Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
Purty Wood #677
Wall CC BY-SA 3.0You know you love wood patterns, so here’s one more.
Source Richard Tabor
Decorative divider 234 #2093
Dark CC 0Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
Prismatic Snowflakes Pattern 2 No Background@2X #782
Light CC 0Prismatic Snowflakes Pattern 2 No Background
Source GDJ
Fence 9 (colour 2) #2194
Wood CC 0A browner version of the original weathered fence texture.
Source Firkin
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
Silver Scales #189
Light CC BY-SA 3.0Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Background pattern 201 #2501
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
Cube Well & Blue #1699
Wall CC 0Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Candy cane pattern #1853
Noise CC 0Remixed from a PNG that was uploaded to Pixabay by k_jprather
Source Firkin
Dark Line #1294
Stone CC 0ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
Prismatic Rounded Squares Grid 4 No Background #491
Noise CC 0Prismatic Rounded Squares Grid 4 No Background
Source GDJ
Gray Dots Background Pattern #1127
Grid CC BY-SA 3.0A seamless background pattern with impressed gray dots.
Source V. Hartikainen