STEPS
TOOLS
Search for Gimpshop.
Click the first link and you come here.
Click Downloads.
Download for Windows or Mac.
The other option (that i think is better) is Gimp. Search for Gimp.
Click the first link and come to this page.
Click Downloads.
Download for you Operating System.
And that's it. A free alternative to Photoshop.
The creator of this guide has not included tools

How to find alternatives to adobe photoshop

There are other things that are just as good as Photoshop but free.