A seamless tessellation pattern. To get the tile this is formed from, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
White circles connecting on a light gray background.
Source Mark Collins
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
A free seamless background with pink spots.
Source V. Hartikainen
Prismatic Snowflakes Pattern No Background
Source GDJ
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
A seamless pattern with green and yellow diagonal lines on top of a white dotted background.
Source V. Hartikainen
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Remixed from an image that was uploaded to Pixabay by KirstenStar
Source Firkin
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.
Source Firkin