Rough Diagonal@2X #692
Fabric CC BY-SA 3.0The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
More Textures
Background pattern 231 #2301
Dark CC 0A seamless pattern based on a tile that can be achieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Overlapping planks 6 #2570
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Raindrop-seamless pattern #2558
Blue CC 0This is the remix of an OCAL clipart called "Rain on Window" uploaded by "pagarmidna".Thanks.This is a seamless pattern of raindrops.
Source Yamachem
Light Gray@2X #1204
Gray CC BY-SA 3.0Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
"Polished Stone", Gray Background Pattern #1053
Stone CC BY-SA 3.0A seamless gray background texture suitable for use on websites. To me, it has the look of stone. Feel free to modify it to meet your needs (by making it a bit lighter or darker, for example).
Source V. Hartikainen
Interlocking pattern 3 #2406
Grid 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
Stitched Wool #843
Light CC BY-SA 3.0I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
"Reptile Skin", Seamless Texture #1119
Leather CC BY-SA 3.0A free seamless texture of reptile skin colored in a dark brown color. As always, you may use it as a repeated background image in your web design works, or for any other purposes.
Source V. Hartikainen
Green Striped Background #899
Stripes CC BY-SA 3.0If you need a green background for your blog/website, try this one. Remember that Green Striped Background is seamlessly tileable.
Source V. Hartikainen
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
SOS #1180
Light CC BY-SA 3.0I have no idea how to describe this one, but it’s light and delicate.
Source JBasoo
Subtle Surface@2X #926
Light CC BY-SA 3.0Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Textured Orange Stripe Pattern #997
Stripes CC BY-SA 3.0A textured orange background pattern with vertical stripes.
Source V. Hartikainen
Prismatic Geometric Pattern Variation 2 With Background@2X #472
Noise CC 0Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
Old Mathematics #43
Stripes CC BY-SA 3.0This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Woody texture-seamless pattern 03 #2543
Wood CC 0This is a seamless pattern of a woody texture.The original image is here:https://pixabay.com/ja/users/ClassicallyPrinted-1302233/
Source Yamachem
Paper 3 #31
Paper CC BY-SA 3.0Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
Fabric pattern 2 (colour 4) #2393
Fabric CC 0Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Lined Paper #1034
Light CC BY-SA 3.0I know there is one here already, but this is sexy!
Source Gjermund Gustavsen