Change any site without any restrictions.
Edit the source code of any page, from styles to scripts, change the elements of the page and their any values!
Improve your skills in web programming, if you are already a developer, then this is not a bad tool to test your site.
The console will allow you to perform more actions than intended by the developer.
Do not understand the purpose of some functions? Not a problem, in the Help tab you will find a description of all the functions that allow you to interact with the site.