It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
The image depicts meshed silhouettes of various things.The original image is an OCAL clipart called "Enter FOSSASIA 2016 #IoT T-shirt Design Contest" uploaded by "openclipart".Thanks.
Source Yamachem
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Not 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
Classic 45-degree pattern, light version.
Source Luke McDonald
Background formed from the original with an emboss effect
Source GDJ
Prismatic Abstract Geometric Background derived from an image on Pixabay.
Source GDJ
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Recreated 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
Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin