↑ Using a Code Editor

A code editor gives you the power to edit all the files that make up your website. These files could be related to how your site looks and is structured (HTML, CSS, Templates) and your content

VS Code is a code editor form microsoft that is open source and freely available. It's an 'all-purpose' code editor so it's powerful in what it can do, with the downside being that are a lot of feature and functionality built in, which might be confusing to navigate at times.

Other free code editors:
Brackets
Atom (mac only)

Other good (but non-free) code editors (both of these are mac only):
Sublime Text
Nova