Remixed from an image that was uploaded to Pixabay by KirstenStar
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Prismatic Chevrons Pattern 5 With Background
Source GDJ
Fix and cc0 to get the tile this is based on.
Source SliverKnight
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Looks as if it's spray painted on the wall. You can be sure that this pattern will seamlessly fill your backgrounds on web pages.
Source V. Hartikainen
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
The image a seamless pattern derived from a weed which I can't identify.The original weed image is from here:https://jp.pinterest.com/pin/500744052301423641/
Source Yamachem
White handmade paper pattern with small bumps.
Source Marquis
Zero CC tileable pine bark texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Groovy Concentric Background 5
Source GDJ
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
This one looks like a cork panel. Feel free to use it as a tiled background on your blog or website.
Source V. Hartikainen
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
There are many carbon patterns, but this one is tiny.
Source Designova