Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
A free web background image with a seamless concrete-like texture and an Indian-red color.
Source V. Hartikainen
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
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
This is a remix of "flower seamless pattern".I rotated the original image by 90 degrees.This is a seamless pattern of flowers.These horizontal wavy lines are one of Edo patterns which is called "tatewaku or tachiwaku or 立湧" that represents uprising steam or vapor.
Source Yamachem
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin