Great free tool to help with front end mods

Just heard about this today on the Knack Telegram Group

Would be great if Knack adopted and “somehow integrated" a tool like this

and/or this

Also, a much better opensource editor for editing CSS/JS …find and replace, folding up sections, code -completion etc

Again I reiterate the need to "partner up" up with some key tech-savvy builders, opensource tools or 3rd party - no point trying to reinvent the wheel