A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
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
Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Sometimes you just need the simplest thing.
Source Fabricio
A bit simplified version. Although it could be edited out to be simpler. Anyway, this time the tiling is converted to a pattern fill -which is using clipping for the tile's edges.
Source Lazur URH
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
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
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Zero CC tileable hard cover green book, scanned and made by me. CC0
Source Sojan Janso
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
The base gradient edited so now more details are rendered.
Source Lazur URH
A free pink background pattern.
Source V. Hartikainen
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Abstract Geometric Background 5
Source GDJ