It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
A colourful background drawn originally in paint.net and vectorised in Vector Magic.
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Prismatic Chevrons Pattern 5 With Background
Source GDJ
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
A free background pattern with abstract green tiles.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This is a seamless pattern of a woody texture.The original image is here:https://pixabay.com/ja/users/ClassicallyPrinted-1302233/
Source Yamachem
A seamless pattern formed from a square tile based on a jpg on Pixabay. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Continuing the geometric trend, here is one more.
Source Mike Warner
A bit of scratched up grayness. Always good.
Source Dmitry
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
"Beige Stone", Tileable Texture.
Source V. Hartikainen
Used a cherry by doctormo to make this seamless pattern
Source Firkin
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Abstract Line Art Pattern Background
Source GDJ
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
A free black metallic background pattern. Here's a new pattern I made that looks metallic.
Source V. Hartikainen
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin