The web site of clockwork-fairy

Ancient brushes I've archived for you to use. A lot of these are Photoshop (.abr) brushes, however whenever available I will try to provide an image pack instead. Please link to the original websites rather than mine if you choose to use them, nobody likes to go uncredited. I'd like to thank Bizette for sending me a huge list of old resource sites!
click on the images to download the brushes.

You can use Photoshop brushes in the following programs:

Clip Studio Paint
Krita
GIMP
...and obviously, Photoshop itself.

If you want to use them in any other program other than the ones I've mentioned previously, you can convert them using:

abrMate (only works with older PS brushes)
abrViewer (only works with older PS brushes)
BrushPilot (doesn't work in modern versions of MacOS)
brush viewer (only works with the most modern versions of PS brushes, and you have the invert the colors manually)

angelic-trust.net brushes

acquired-taste.net

javierzhx.deviantart.com