Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
A seamless paper background colored in pale yellow.
Source V. Hartikainen
The classic notebook paper with horizontal stripes.
Source Are Sundnes
Nicely executed tiling for an interesting pattern.
Source Ignasi Àvila Padró
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
This one is amazing, truly original. Go use it!
Source Viahorizon
Prismatic Abstract Geometric Background 4
Source GDJ
Prismatic Chevrons Pattern 5 With Background
Source GDJ
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Abstract Ellipses Background Grayscale
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin