Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
Geometric triangles seem to be quite hot these days.
Source Pixeden
Dark blue concrete wall with some small dust spots.
Source Atle Mo
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
A dark metal plate with an embossed grid pattern and a bit of rust. Here's a dark metal plate texture for use as a tiled background on web pages.
Source V. Hartikainen
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
A seamless pattern formed from a tile made from page ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Zero CC asphalt, pavement, texture, photographed and made by me. CC0 WARNING I FOUND A SEAM ON THIS TEXTURE
Source Sojan Janso
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
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
Abstract Tiled Background Extended 10
Source GDJ
The image depicts a seamless pattern of pine tree leaves.
Source Yamachem
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Alternative colour scheme for the original floral pattern.
Source Firkin