CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
This texture looks like old leather. It should look great as a background on web pages.
Source V. Hartikainen
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Light and tiny, just the way you like it.
Source Rohit Arun Rao
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
Prismatic Geometric Pattern Background 2
Source GDJ
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
A heavy hitter at 400x400px, but lovely still.
Source Breezi
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin